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 do you get when you divide 30 by 1/2 and add 10?

The ages of a father and son add up to 66. The father's age is the son's age reversed. How old could they be (there are 3 possible solutions)?

What 3 positive numbers give the same result when multiplied together as when added together?

There are several books on a bookshelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

I asked a girl how old she was. She said, "In 2 years I will be twice as old as I was 5 years ago." How old is she?

If you multiply this number by any other number, the answer will always be the same. What number is this?

A set of natural numbers start with number .....

0, 1, 2, 3, 4, ... are a set of ...... numbers.

There are two ducks in front of two other ducks. There are two ducks behind two other ducks. There are two ducks beside two other ducks. How many ducks are there?

Arrange four nines to make it equal to 100.

..., -3, -2, -1, 0, 1, 2, 3, ... are a set of ..... .

I am an odd number. Take away a letter and I become even. What number am I?