Find the Square of two digits number

Find the number of two digits number 1.Sum of the digits is 15, 2. Difference between the digits is 3,

How many two-digit numbers satisfy this property: The last digit (unit's digit) of the square of the two-digit number is 8?(a)1 (b) 2 (c) 3 (d) None of these

Find the least number of six digits which is a perfect square. Find the square root of this number.

x and y are 2 different digits. If the sum of the two digit numbers formed by using both the digits is a perfect square, then find x + y .

Find the greatest number of five digits which is a perfect square. Also find the square root of the number of obtained.

A certain number of two digits is three times the sum of its digits. If 45 is added to the number, the digits will be reversed. What is the sum of the squares of the two digits of the number?

The number of two digit numbers which on being reversed (i.e., their digits exchanged the position) gives out perfect square two digit numbers:

Two units digit of a two-digit number is 3 and seven times the sum of the digits is the number itself. Find the number.

The number of two digit numbers which are perfect square and perfect cube both is :