Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

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?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

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

You bought me for dinner but never eat me. What am I?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

I can write cow in 13 letters.

Can You?