They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Where do fish keep their money?

The answer I give is yes, but what I mean is no. What was the question?

What has many teeth, but cannot bite?

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Can you find out who is the kidnapper in below Picture and why, Explain ?