Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Solve the puzzle by telling what does below picture means.

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

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

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Can you name some countries which do not have the alphabet 'A' in them?