You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

How can a man go eight days without sleep?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

What has many teeth, but cannot bite?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

5 $ 4 $ 3 $ 9 = 4215
6 $ 9 $ 2 $ 6 = 3816
4 $ 7 $ 3 $ 3 = 1122
7 $ 2 $ 7 $ 4 = ____

There is a certain crime, that if it is attempted, is punishable, but if it is committed, is not punishable. What is the crime?