Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

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

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?

Replace the question mark with the correct number in below Picture:

Find the value of "?" in the ball picture Riddle below:

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