Addition of perfect square/cube to get the next one

Perfect cube

The probability of getting a perfect square number from the numbers 1 to 10 is:

By what least number should 6300 be divided to get a perfect square number ? Find the number whose square is the new number.

Is one lakh a-perfect square?

Find the probability of getting the product of a perfect square (square of a natural number), when two dice are thrown together.

Find the probability of getting the product of a perfect square (square of a natural number), when two dice are thrown together.

A die is thrown for times .The probability of getting perfect square in at least one throw is

Perfect cube may end with one zero

A die is thrown four times. The probality of getting perfect square in at least one throw is