Steve wonders "Why don't I have a girlfriend?".

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

The total land area of the United States is . . .

A city of 1,111,000 residents had a total of 111 car accidents last year. . . .

If eight people can stand on a square meter of carpet, how many of them can . . .

Three boys, A, B, and C, are at the corners of a rectangular field. At which . . .

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

A stadium security system consists of two stages. In the first stage, 60% of . . .

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

Is the number of people in the world that has shaken hands with an odd number . . .

Jim won a contest in which the prize was his weight in U.S. dimes (1 dime = 10 . . .

The diagram shows some of the results of a six-person contest. There are two . . .

A space rocket has a critical fuel-control system protected by 4 fuel . . .

The table shows the results of a competition among 5 teams. Each team plays . . .

Bob is looking for a new job. He has three offers with the same starting . . .

If you would like to give a tip of 15% and you have no change, without using a . . .

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

It costs $24 to paint a cube, the cost being proportional to the surface area. . . .

Based on 20 years per generation, estimate the number of ancestors you had 220 . . .

John arrives at crossroads A from the North. He makes four moves each time . . .

The picture shows four supermarket lines, viewed from above. The numbers are . . .

If 3 of every 150 astronauts are NOT married, then what percentage of all . . .

The traveling salesman problem: a salesman has to visit 9 towns and return . . .

The Chinese postman problem: a postman wants to travel along each road in his . . .

The diagram shows a road network. All cars drive in one direction from A to B. . . .

Swiss trains leave from Zurich for Geneva every hour. The trip takes three . . .

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

The picture shows statistics regarding visits to the website . . .

Based on 20 years per generation, estimate the number of ancestors John has in . . .

The picture shows an example of the Aztec code for Wikipedia. Estimate the . . .

Estimate the area of the lake shown on the right.

The boxing ring is 6 meters in length on each side between the ropes. How . . .

If 10% of the people get 90% of the total salary paid in a county, and the . . .

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

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

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

The Ancient Olympic Games were held every four years. They already existed at . . .

The figure shows the number of people required . . .

The Venn diagram shows the result of a survey of 80 clients. It indicates the . . .

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

The business of company A is 10% greater than the business of company B now. . . .

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

John received a pay raise due to extraordinary performance. He decided to not . . .

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

How many seconds are there in a year?

There are 100 rabbits in Funnytown. The population of rabbits in Funnytown . . .

You can purchase or rent a car. The car is available at a rental fee of $250 . . .

John's heart beats at a rate of 65 beats a minute when he is awake and 50 beats . . .

In a casino on a Sunday, 90% of the visitors lost $200 each, 9% of the . . .

A man and his equipment weigh 180kg on Earth. If he takes the same set of . . .

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

Which direction is the London coach going?

Alex possesses 52% of a business and the rest belongs to Bill. They take . . .

A baby is born every six hours, three deaths occur every week, and five . . .

Bob earns $48,000 per year and has two weeks of paid vacation. He works five . . .

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

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

A player must match three different numbers chosen from the integers 1 to 30 . . .

The picture shows a subway map. If it takes 3 minutes to go from one station . . .

In a country, a baby is born every 5 seconds, a person dies every 45 seconds, . . .

Wikipedia says that the equator is about 40,075 kilometers (24,901 miles) long; . . .

How many "yes or no" questions are needed to guess any 5-digit code?

How high is a $50,000 stack of $1 bills, given that the thickness of 100 bills . . .

Water weighs 1000kg per cubic meter at 4 degrees Celsius. Fresh snow that . . .

Two proofreading programs, A and B, discovered 30 and 40 errors, respectively. . . .

On an island, three-quarters of the men are married to four-fifths of the . . .

There were 4,492,205 articles and 21,140,000 contributors in the English . . .

According to a study, hair grows about half a millimeter each day. How much . . .

According to USDA's Economic Research the average American ate 2000 lbs of food . . .

I see the reflection of the mountain peak 10 meters from me. I know that the . . .

What is the minimum monthly salary you negotiate with your boss if you need . . .

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

The diagram shows the lowest point and the highest point of our planet. What . . .

If the first President of the USA George Washington took office in 1789 and the . . .

Javier Sotomayor (Cuba) is the men's record holder with a jump of 2.45 m set . . .

How many days does Bob work in 40 years of his career if he does not work on . . .

When Jane plays against Gerry in her favorite game, the odds are 5 to 3 that . . .

Steve wonders "Why donâ€™t I have a girlfriend?" He uses the following . . .

There were 196 countries on the Earth in 2010. The 2-letter codes are . . .

The diagram shows some of the results of a six-person contest. There are two . . .

I bought a 20'' (the diagonal size) laptop with the ratio of the screen width . . .

Bob works for 40 years. He does not work on weekends, has a 3-week summer . . .

Leslie Green asks: quot;You accidentally knock an almost full opened can of . . .

Bob worked for 45 years. He did not work on weekends, had a 3-week summer . . .

Would you rather work five days at $120 per day or be paid $20 the first day . . .

Martin has 10,000 dollars in the Mad Money's bank account. . .

A taxi driver called John has 6-week annual holidays. If the average fare is . . .

A shopkeeper purchased 300 bulbs for $0.95 each. However, every . . .

Lottery 6-digit numbers are from 000001 to 999999. A ticket is considered to . . .

Gerry's rich uncle gave him $2 on his first birthday. On each birthday after . . .

The Locarno Film Festival is a famous event held in Switzerland. The Piazza . . .

A dealer has 40 brand new cars to sell. He paid $40,000 . . .

Five rabbits bought a scale which is imprecise for small and large weights. It . . .

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