I am lying and I always lie. Tell me whether I am lying or telling the truth.

There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Can you solve the maths in the below-given picture equation?

The more you take me, the more you leave me behind.
Who Am I?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

Prove that twice of ten is the same as twice of eleven.

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209