If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

When 99 is considered higher than 100?

People put me on the table and cut me but do not eat me. What am I?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

You need to move three matchsticks to form three squares. Can you do it?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

How can one talk without saying a single word?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

What is the next number in this matchsticks series riddle?