Multiplication trick of two digit number

The multiplication of a three-digit number XY 5 with digit Z yields X 215. What is X+Y+Z equal to?

How many two digit numbers exist such that the product of two digit number and two digit number formed by reversing its digits end with 5.

Number of digits in the cube of a two digit number may be ____________

The difference between a two-digit number and the number obtained by interchanging the two digits of the number is 18. The sum of the two digits of the number is 12. What is the product of the digits of two-digit number?

The sum of the digits of two digit number is 14 and the difference between the two digits of the number is 2. What is the product of the two digits of the two digit number?

The sum of the two digits of a two-digit number is 15 and the difference between the two digits of the two digit number is 3. What is the product of the two digits of the two digit number ?