The value of $$ { 32^{0.16}×32^{0.04}}$$ is:

The product of two consecutive odd numbers is 399. Find the lower of them.

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

$$({144\over16}×{828\over 9})=?+325 $$

When 3738, 5659 and 9501 are divided by the greatest possible number x, the remainder in each case is y. What is the sum of x and y?

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

In a school $${1\over10} $$ of the boys are same in number as $${1\over4}$$ of the girls and  $${5\over8} $$ of the girls are same in number as $${1\over4}$$   of the boys. The ratio of the boys to girls in that school is: 

The sum of three numbers is 252. If the first number is thrice the second and third number is two-third of the first, then the second number is

The arithmetic mean of the following data is .

23, 17,20,19,21