What will be come in place of question mark(?) in the following number series?
13 , 14 , 30 , 93, ?, 1885

What should be added at least in 1140 so that it becomes a perfect square?

The least number that must be added to 8961 to make it exactly divisible by 84 is 

When a number is increased by 28, it becomes 107% of itself. What is the number?

Find the greatest number which divides 108, 124 and 156, leaving the same remainder. 

The numerator of a fraction is 4 less than its denominator. If the numerator is decreased by 2 and the denominator is increased by 1, the denominator becomes eight times the numerator. Find the fraction? 

Two numbers are such that their difference, their sum and their product is in the ratio of 1: 7: 24. The product of numbers is

The number of pairs of natural numbers the difference of whose squares is 45 will be –