The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

What word is represented by this rebus?

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

Solve the alphametic puzzle by replacing the alphabet with the number.

S T O R M +
S O L E S
=========
T O W E L
=========

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

What has a ring but no finger?

I always drive my customer away.

Who am I?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?