I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Can you make a six-letter word using the letters N, A and B ?

Can you name an animal whose killing cannot be performed without spilling your own blood?

When it is alive we sing, when it is dead we clap our hands. What is it?

Can you solve the below rebus?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

If you had an infinite supply of water and 5-quart and 3-quart pails, how would you measure exactly 4 quarts? What is the least number of steps you need?

A journalist was investigating a sacred cult in the jungles of Africa when he was caught by one of the person. He was confined in a cave till the leader arrived. The leader told him that he need to tell him a statement. If he thinks the statement is true, then the journalist head will be chopped off. If he thinks that the statement is false, his head will be smashed with a hammer.

What statement did the journalist make to survive?

Which is the smallest number that you can write using all the vowels exactly once?