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

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

What has a ring but no finger?

If 1+9+8=1, what is 2+8+9?

A woman lives in a Tall building thirty-six floors high and served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

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

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?