That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

Can you move 2 matchsticks to form four equal sized squares.

Solve the mathematical equation in the picture below.

Why is the Hole below a Lock?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?