Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

Name a key which is hardest to turn.

I add 5 to 9 and get 2. The answer is correct, so what am I?

O_er_t_o_

Complete the missing letters of the given word.

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

How do you go from 98 to 720 using just one letter?

Count the squares in the matchstick puzzle below?

Look at me. I can bring a smile to your face, A tear to your eye, Or even a thought to your mind. But, I can't be seen. What am I?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?