2♥

What is the next letter in the series if it is not O? F F T T O

2♦

How many zeros are there at the end of the product of all one-digit integers?

2♠

Why are these two numbers equal?2^{10}10000000000

2♣

12345678 → 4234567 → 23456 → 245 → XFind X.

3♥

Find the odd one out.ACTCOSTDUMMYEFFORTLINK

3♦

Fifty men met at a conference. Each man shook hands with each of the other men exactly once. How many handshakes took place?

3♠

How many trials are needed to identify 3 keys for 3 keyholes?

3♣

Make 33 by using three 3s and any signs.

4♥

Which digit has to be moved to make the equation correct?102 - 99 = 1

4♦

If you take one third of GOOGLE and two thirds of ATT, what do you get?

4♠

Which goes next?NE E SE S

4♣

How many apples at equal distances from each other can you place?

5♥

Why are there less than 13 seconds in a year?

5♦

52 - 28 = 4Which digit has to be moved to make the equation correct?

5♠

Counting from 11 by 1, which number comes next if it is not 12?

5♣

I + XI = XWhat is the simplest way to make this correct?

6♥

Sixty-six players enter a tennis tournament. How many games must be played if each player is eliminated by one loss?

6♦

Why do mirrors reverse right and left instead of up and down?

6♠

The sum of 11 consecutive integer numbers is 11. What is the largest number?

6♣

Find the odd one out.Hand-MadeSwiss madeSelf-madeMade in USA

7♥

If you were to spell out the numbers, how far would you have to go before encountering the letter 'A'?

7♦

What happens once in a minute, twice in a week, and once in a year?

7♠

How many times do clock's hands overlap in a day?

7♣

I place 11 chairs along the walls in an empty rectangular room. The number of chairs along each wall is the same.Find the number.

8♥

I will be X years old in year X^{2}.How old I am?

8♦

Six → ThreeTwelve → Six Eighteen → XFind X, if it is not Nine.

8♠

How many integer numbers are there that are twice the sum of its digits?

8♣

If a hen and a half lay one half of an egg in two days and a half, how many eggs does a hen lay in a month?

9♥

If 2 salesmen can sell 3 luxury cars in 4 days, how many cars can 5 sales-men sell to six clients in 7 days?

9♦

99% of nuts plus 99% of a nut cost as much as all nuts. How many nuts are there?

9♠

How many students are there in Jane's class if 95% of them have different number of hair than she has?

9♣

How many planes of symmetry does a cube have?

10 ♥

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

10 ♦

If you are redhead you have more than the average amount of hair.Is this true or false?

10 ♠

Find the odd one out: DEMONFIRSTFORTYGHOST

10 ♣

A brick weighs 10 pounds and half a brick.What does a brick weigh?

J♥

Do you know the score of the soccer match France - England before it begins?

J♦

Zac's number is 5.Anna's number is 6.Bill's number is 7.What is Charlie's number?

J♠

How many small pieces of cheese can you get from big one by using only 5 cuts?

J♣

I am playing Russian roulette. I randomly spun the chamber and fired but nothing was fired. Would I rather fire the gun again or respin the chamber and then fire?

Q♥

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

Q♦

A lady, attempting to avoid revealing her real age says: I'm twenty-two years old if you do not count weekends and one summer month of every year. Guess her real age.

Q♠

What is half of work and one third of gentleman?

Q♣

80% of projects fail and 20% of the projects' managers are female. What fraction of male managers succeed?

K♥

How many times can you subtract 3 from 33?

K♦

There are 5 geeks in a boat. Four of them do one of the activities: arm wrestling, counting birds, reading, and singing.What is the fifth geek doing?

K♠

In a room, there are 3 bosses, 2 wives, and a plumber. What is the least possible number of people is there?

K♣

A shopkeeper of a Diary stands six feet tall and wears size 14 sneakers.What does he weigh?

A♥

What is the smallest number that can be formed with two different integers?

A♦

Gerry detected 2 errors and Mary 3 errors in a code. There is one error in common. How many errors are still undetected?

A♠

At least two New Yorkers have the same number of hair that is greater than zero. True or False?

A♣

Anna A, Bill B, Cindy C, and Dan D do a work.A, B, C do it in 10 days.B, C, D do it in 11 days.C, D, A do it in 12 days.D, A, B do it in 13 days.Who is the best performer?