100+ Hard riddles to test your mental acuity

If two's company, and three's a crowd, what are four and five?

The 22nd and 24th presidents of the United States of America had the same parents but were not brothers. How can this be possible?

Poor people have it. Rich people need it. If you eat it you die. What is it?

Mike and Pat are in a desert. They both have packs on. Pat is dead. Mike, who is alive, has his pack open. Pat has his pack closed. What is in the packs?

What word in the dictionary is spelled incorrectly?

Which letter of the alphabet has the most water?

A bus driver goes the wrong way on a one-way street. He passes the cops, but they don't stop him. Why?

Take away the whole, and some remain. What is it?

A man was robbed at midnight. The value of the items added up to ten thousand dollars When the police checked, there were two copies of the thief standing outside the door. The police arrested the correct one right away. How could they know?

You walk into a room that contains a match, a kerosene lamp, a candle, and a fireplace. What would you light first?

How can you put a pencil on the floor where no one can jump over it?

A house of wood in a hidden place. Built without nails or glue. High above the earthen ground It holds pale gems of blue.

What kind of car does a pharaoh drive ?

Imagine you are deserted on an island lighted up with fire. You have no bucket so you cannot use the seawater. How do you escape?

How can you physically stand behind your father while he is standing behind you?