How many three-digit numbers are there in which all the digits are odd? 

If a nine Digit number 785x3678y is divisible by 72, then the value of (7x- 5y) is:

Find the number of Prime Factor of $${(4^{22}+{4^{22}}+{4^{22}}}+{4^{22})}{(3^{22}+3^{22}+{3^{22}})}$$.

The difference between the greatest and the least four-digit numbers that begins with 3 and ends with 5 is: 

The greatest number that can be subtracted from 10000 so that the remainder may be divisible by 32, 36, 48 and 54 is:

If the arithmetic means of 3a and 4b is greater than 50, and a is twice b, then the smallest possible integer value of a is: 

The difference between the greatest and least five-digit numbers formed by the digits 2,5,0,6,8 is (repetition of digits are not allowed) 

The number of integers in between 100 and 600, which are divisible by 4 and 6 both, is: