The largest natural number which exactly divides the product of any four consecutive natural numbers is

What will be come in place of question mark(?) in the following number series?
8,  14, 25, 46, 82 , ?

Twice the difference between two numbers is equal to their sum. If one number is 15, find the other number.

Direction : What value should come in place question mark(?) in the following questions?

- +=?

When 1062, 1134 and 1182 are divided by the greatest number .x, the remainder in each case is y. What is the value of (x − y)?

The sum of the digits of a two digit number is 15. When 9 is subtracted from the given number then its digits interchanged. What will be the required original number?

The least number that should be added to 2,397 so that the sum is exactly divisible by 3, 4, 5 and 6 ?

The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number-pairs EXCEPT one. Find that odd number-pair.