I can write cow in 13 letters.

Can You?

Imagine you are in a room with no windows or doors. How will you get out?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

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?

What word begins and ends with an E, but has only one letter?

What has lots of eyes, but can’t see?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Why did the Girl throw the butter out of the window?