You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?

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?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

By using 'because' continuously three times, can you make an English statement ?

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?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

What goes up but never comes down?

Find the next number in the sequence

5 12 24 36 ?

Count the number of triangles in the picture below: