What two things can you never eat for breakfast?

What has 13 hearts but no other organs?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

Can you place three balls such that the equation shown in the picture holds true?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Why is it against the law for a man living in Delhi to be buried in Mumbai?

What has 88 keys?