There are forty elephants and they have forty-fore heads. How can this be possible?

What is the difference between a jeweller and a jailer?

Whats the next number in the below number sequence pattern.

What does this rebus riddle means ?

That attorney is my brother, testified the accountant.

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

Who is lying?

John is a strange liar.

He lies on six days of the week, but on the seventh day, he always tells the truth.

He made the following statements on three successive days:

Day 1: "I lie on Monday and Tuesday."
Day 2: "Today, it"s Thursday, Saturday, or Sunday."
Day 3: "I lie on Wednesday and Friday."

On which day does John tell the truth?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

What have one eye but still cannot see?

Why do we preferably have round manhole covers and not square ones?