10 of the Hardest Riddles to Test How Smart You Are

What English word has three consecutive double letters?

Answer: Bookkeeper

I come from a mine and get surrounded by wood always. Everyone uses me. What am I?

Answer: Pencil Lead

What disappears as soon as you say its name?

Answer: Silence

I have keys, but no locks and space, and no rooms. You can enter, but you can’t go outside. What am I?

Answer: Keyboard

What gets wet while drying?

Answer: Towel

A is the brother of B. B is the brother of C. C is the father of D. So how is D related to A?

Answer: A is D's Uncle

This belongs to you, but everyone else uses it.

Answer: Your Name

What comes once in a minute, twice in a moment, but never in a thousand years?

Answer: The Letter 'M'

Which word in the dictionary is always spelled incorrectly?

Answer: "Incorrectly"

What can you hold in your right hand, but never in your left hand?

Answer: Your Left Hand

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