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?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

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

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

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

How many triangles are there on the puzzle below?

What is next number in the pattern below:

131 517 192 123 ?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

Can you find out the remainder when 3^300 is divided by 5?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?