Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

Solve below rebus puzzle?

What can you hold in your right hand, but never in your left hand?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

Find the missing number: 1, 2, 3, 10, 10, ?, 9,802

What has one eye, but can’t see?

Readers with the eyes of a hunter can find the snake in the field. Can you? Test your puzzle-solving skills now!

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?