The Chinese Calendar is based on a twelve-year cycle. Each year in the cycle . . .

Eugenia, the magician, receives a 50% discount every time she asks for the . . .

I strike a pool ball from corner A of the rectangular billiard table at an . . .

Eugenia's grandmother bought a new car for $55,000 in 1970. The car . . .

A girl was born in the 20th century. Take away from her year of birth the sum . . .

Which is the best estimate of the area of the colored shape?

The twins are the same height. They place four identical blocks as shown in . . .

A gardener has to reach the island in the middle of a pond without getting wet. . . .

Choose the bolt head design that can be easily turned with the household wrench.

A lady, attempting to avoid revealing her real age to her husband, says: I'm . . .

Who is the tallest person?

In a game, you have a 1/5 probability of winning $100 and 4/5 probability of . . .

On January 1st, Anna and Bill have $100 each. Each month Anna saves $10 more . . .

John has just had a 1% net pay rise. He used to take home $5,000 a month. He . . .

With the cash in her pocket, Mrs. Smith can either exactly afford ice cream . . .

What is the probability that the next person you meet is George Washington, the . . .

The diagram shows 15 billiard balls that fit exactly inside a triangular rack. . . .

Each box is labeled incorrectly. I want that the boxes are labeled correctly. . . .

A dragon drank 1/5 of the water in a lake. After a break, he drank 1/4 of the . . .

This shape was formed by removing a small cube from a big cube. The volume of . . .

Dueling Idiots Problem: three idiots participate in a duel. They shoot at the . . .

After a rodeo, four cowboys have a meeting in a saloon. Each cowboy has only . . .

After a gun is fired in a saloon, 75% of the cowboys have a wounded ear, 80% . . .

John ate a share of a pizza and left another part to his friends Jim and Jack. . . .

This is a standard set of dominoes. One domino has no spots, one domino has 1 . . .

After a gun is fired in a saloon, 75% of the cowboys have a wounded ear, 80% . . .

Three boys want to equally share three pancakes. The picture shows the . . .

I would like to cut the shape into the fewest possible pieces that will fit . . .

The weight limit for an elevator is 800kg. Which statement is absolutely . . .

Three white hens and four black hens lay as many eggs in five days as two white . . .

How many seconds were in 2012?

A kitten has a 50/50 chance to be male or female. My cat just delivered two . . .

I want to move just one matchstick to make the phrase correct. From which . . .

On September 4, 1781, the full name of Los Angeles was El Pueblo de Nuestra . . .

Bob the plumber has 10 pockets and 60 nuts. He wants to put the nuts in all . . .

I completely covered a one square meter area with $100 bills without any . . .

I sold two cars and received sixty thousand dollars for each car. I received . . .

A county hospital proudly announces "A new baby is born every 20 minutes, 24 . . .

John and Jim are twins. How many grandparents do they have?

I strike a pool ball. The picture shows the trajectory of the ball. How . . .

What is the largest digit in the product of 11111111 x 11111111 ?

In a casino on a Sunday, 90% of the visitors lost $100 each, 9% of the . . .

A frog jumps one meter 3 times, and every time he randomly chooses one of four . . .

What is the number of "Friday the 13

Henry has 100 roses. He gives them to his dancing partners in such a way that . . .

A man is eating a pizza. During the first day he eats a half of the pizza. . . .

Several students want to rent a car for the next weekend. If each contributes . . .

What is the largest possible number of pieces you can receive if you cut a . . .

John can eat a pizza in 4 minutes. Jim can eat a pizza in 5 minutes. Their . . .

Sixty-five students want to share 15 melons. They decide that four boys share . . .

In a family photo, I see 1 grandmother, 1 grandfather, 2 fathers, 2 mothers, 2 . . .

What would this picture look like in a rearview mirror?

An amoeba is a shapeless unicellular organism. An amoeba propagates by simple . . .

A farmer puts several pigs into three pens. None of the pens is empty. All . . .

A photographer will pay me $3600 per hour of taking a picture of my smile. . . .

How old is the eldest sister if the product of the sisters' ages is 792?

Bryan went for a haircut yesterday. He has 120000 strands of hair and it took . . .

Jim stayed for 18,000 seconds at a zoo. At what time did he leave if he . . .

Three ducks and four ducklings weigh 3.4kg. Four ducks and three ducklings . . .

This shape was formed by removing a small cube from a big cube. The side . . .

This is a standard set of dominoes. One domino has no spots and the greatest . . .

Guesstimation. Anna has 100,000 strands of hair with an average length of 40 . . .

Make 727 by using three 7s. You can use any math operator that you would . . .

Large individual letters are differently priced. The letters in the word . . .

Anna (A), Bill (B), Cindy (C), and Daniel (D) work on a project. (1) . . .

One hundred and thirty shareholders decide to buy 30,000 shares of company A. . . .

John is going to repair his house. There are three major activities: . . .

Three mentors and four apprentices produce as many devices in five days as two . . .

The average hourly wages of men and women in company A are $21 and $16, . . .

Guesstimation. How many tennis balls can fit in a school bus?

Which number comes next? 2, 12, 1112, 3112, . . . .

There is a legend that a stork brings babies to a village. All parents . . .

If a hen and a half lay one half of an egg in two days and a half, how many . . .

Find a phrase that differs from the others.

I want to measure exactly six minutes from the moment I touch an hourglass, . . .

Logic puzzle: a secret door. A man approached the door of a secret . . .

An entrepreneur wants to hire the best person for a position. He makes a . . .

I am selling my car. People come to my garage one at a time and make bids to . . .

Logic riddle In a house, there are three switches on the ground floor for . . .

An amoeba is a shapeless unicellular organism. An amoeba propagates by simple . . .

Logic riddle This occurs once in every second, once in every hour, and twice . . .

A lot of money is in a box. None or just one inscription on the boxes is . . .

I took several pieces of fruit from the bowls. All of them are cherries . . .

One hundred soldiers form a 10 x 10 square. From every column, the tallest . . .

Find the odd one out.

On average there are 100,000 strands of hair on a person's head. Hair grows . . .

What is the next letter in this series?

What is the smallest number of matchsticks you remove to make 10?

You are shrunk so that your height is equal to the diameter of a dime (a . . .

A donkey must transport 900 carrots to the market, which is 300 miles away. . . .

It takes exactly 1 hour to burn a rope when I light one of its ends. The rate . . .

How many times heavier than a rabbit is an elephant?

Logic puzzle: What number comes next after 66?

Logic puzzle: Counting down from 100 by one, which number comes next?

What is the maximum amount of Xs that you can you place on a Tic-tac-toe board . . .

A group of kids with dogs go for a walk. There are 49 feet and heads . . .

I plan to roll a die 10 times. Which of these results is more likely?

Logic puzzle: What happens once in a minute, twice in a week, and once in a . . .

Ninety-nine percent of John's nuts and 99% of a nut cost as much as all his . . .

John is 33 years, 33 months, 33 weeks, 33 days, and 33 hours old. How old is . . .

Bob shaves himself 4 minutes per day. If he lives 70 years, what is the . . .

The national debt of a country is 16.5 trillions. It has a population of 300 . . .

A goldfish need 1000 cubic inches of water to live in. An aquarium is 20 . . .

152 Garfield Show episodes were produced in 2009 - 2012. Each episodes is 22 . . .

80% of IT projects fail, and 20% of managers are female. What fraction of . . .

How many apples at equal distances from each other can I have?

Two hammers and a nail cost $21. If the hammers cost $20 more than the nail, . . .

"1" costs $10; "20" costs $20; How much does "100" cost?

I participate in a Formula 1 race. One second before the finish I am the . . .

How many seconds are there in a year?

What is the logic behind? What is correct answer?

Logic puzzle: a secret door. A man approached the door of a secret . . .

An average baby is about 20 inches (51 cm) long and weighs approximately 6 to 9 . . .

Bob shaves himself 3 minutes every day including the weekends. If he starts . . .

If I delete a letter in a word, then only one is left. Find the word.

I want to move just two matchsticks to make the equation correct. How many . . .

What is heavier than a cumulus cloud, which is about 1 cubic kilometer in . . .

Logic question. What is the easiest way to make the following equation . . .

If 2 salesmen can sell three luxury cars in 4 days, how many luxury cars can . . .

A two-digit number, read from left to right, is 20% greater than the same . . .

If you are a redhead you have more than the average amount of hair. This . . .

A bug walks from corner A of a room to corner B by only moving along the walls. . . .

Adding a letter to a word makes it odd. What is the word?

A bus carrying 5 tourists travels to Dogland. Every tourist has a dog. Every . . .

A surgeon has two pairs of surgical gloves. What is the maximum number of . . .

Logic riddle: In a house, there are three switches on the ground floor and a . . .

A boy has as many sisters as brothers, but each of his sisters has three times . . .

Which direction is the London coach going?

Alex(A), Beatrice (B), and Craig (C) work on a project. (1) Together, A and . . .

"Letter frequency. Accurate average letter frequencies can only be gleaned by . . .

After a three-hour drive, I stopped my car in front of a wall with three doors: . . .

A four-letter word can be written forward, backward or upside down while . . .

At a party 60% of the boys are dancing with 90% of the girls. How many . . .

Your boss has been told to give you a medal at the end of the day, for each of . . .

Six goldfish need 2/3 of a cup of fish food per week. How many fish could be . . .

Is it legal for a man in Montana to dance with his widow's sister at her . . .

I take half of the coconuts plus a coconut. What percentage of coconuts do I . . .

Mount Everest is the Earth's highest mountain with a peak at 8,848 meters . . .

I place 11 chairs along the walls in an empty rectangular room. The number of . . .

A committee consists of 7 people. The committee keeps an important object in a . . .

Andrew is expecting two important 10-minute phone calls today at a randomly . . .

Guesstimation A man can jump up to four times the length of his own body. . . .

A swimming pool is 12.5 x 8 x 3 meters. The average volume of a human body is . . .

Gerry sent three letters to three girlfriends. The postman put the letters . . .

A frog ate 20 flies in a day. Each day, the frog ate 20 more than on the day . . .

Job interview logic puzzle in a bank. Which of these pieces of information . . .

How many 1x1 squares fit into the large square with the side length 4.8? . . .

In a game, Anna and Bill take 1, 2, or 3 coins on each turn. The player to . . .

The Smith family consists of parents, children, and animals. Some of them are . . .

An aquarium has a water surface area of 10,000 cm

How high is a batch of $50,000 in $1 bills if the thickness of 100 bills is . . .

The size of a swimming pool is 25 x 12.5 meters. How many people must jump . . .

After a test of a code, John detected 2 errors and Mary discovered 3 errors in . . .

A father has left 47 donkeys for you to distribute to his three sons; 1/2 . . .

Five students Anna, Bill, Craig, Daniel, and Eugene commute by bus. Every . . .

How many uninteresting numbers exist? The question is based on the . . .

Jane is cooking for 22 pirates. She needs 2 eggs per pirate and at least 3 . . .

Mr. Smith bought glasses for all members of his family including animals and . . .

If a 12-year-old boy has already lived one ninth of his life, how long does he . . .

Ben ate 100 bananas between Monday and Friday, stopping for the weekend. . . .

Find the product of 111,111,111 x 111,111,111

A pirate boat is floating on a lake. The pirates throw a heavy chest with gold . . .

There are 5 children in a boat. Four of them do one of the activities below. . . .

Would you rather sit in a traffic jam for . . .

How long do One Thousand and One Nights last? A Persian king, Shahryar, . . .

"This is a capital letter of the alphabet that's been folded just once. Which . . .

Two train are 1 kilometer apart at a single track railway line. They set off . . .

Mrs. Smith has three sons who play hockey, two sons who play basketball, one . . .

Bob used to weigh 100kg. His new stressful job causes him to lose 10% every . . .

The knights gallop 100 m in 10 seconds. There are 1000 m in 1 km. Would the . . .

Which is correct?

Gerry's circular garden is 1200 m in diameter and has no fence. How far can a . . .

What is the maximum number of sections into which a pancake may be divided into . . .

Jane picks a random integer between 1 and 5 (inclusive) and Gerry does the . . .

If Gerry gives Jane one apple, they will have the same number of apples. If . . .

Veryfast Airlines loses 20% of the luggage. Gerry puts his three favorite toys . . .

At the end of each week, Gerry forgot 50% of what he knew the week before. At . . .

The theory of relativity connects the mass at high speed with initial mass, the . . .

According to Wikipedia Mrs. Vassilyeva holds the record for most children: she . . .

Gerry drives to Jane's house at 60 miles per hour and comes back at 40 miles . . .

Chimpanzees have 32 teeth which are very similar to those of humans which never . . .

Guess!

How many letters are there in the word that all smart students spell . . .

95.8% of James' classmates have different number of hair than he has. How . . .

Gerry gave half of his money to Jane. Next day, she gave half of all her . . .

According to research, an average waist circumference of American men is . . .

On average there are 100,000 strands of hair on a person's head. Hair grows . . .

James the Mathematician wants to find a partner for a serious relationship. He . . .

Anna (A), Bill (B), Cindy (C), and Daniel (D) work on a project. (1) . . .

A short word can be written forward, backward or upside down while remaining . . .

Two gods A and B are called, in no particular order, True and Random. True . . .

If it rains at midnight in London, what are chances that it will be sunny in 72 . . .

Sammy the sea lion has spotted a gorgeous Lady sea lion before anyone else. She . . .

Derek dragon became a vegetarian two years ago. Derek likes to eat 3 baskets . . .

The King of a far away land needs to adjust the temperature of the shower all . . .

How many teeth does the Funny Man have?

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