The smallest positive integer, which when multiplied by 392 gives the product a perfect square number, will be :

In a group of 35 people, 23 of them like coffee, 24 of them like tea and each person likes at least one of the drinks. How many like both? 

The total number of digits used in numbering the pages of a book of 366 pages is

Three different containers contain 130 liter, 442 liter and 234 liter of milk, respectively. What biggest measure can be used to measure all the containers exactly?

What is the smallest digit that must be added to the product 5786 × 5784 to make it a perfect square?

Select the set in which the numbers are related in the same way as the numbers of the following set.
 (12, 30, 204)

If 42573* is exactly divisible by 72, then what will come in place of *?

The smallest number, which when added to 680621 gives the sum a perfect square number, will be