A student was asked to divide a number by 5 and add 15 to the quotient. He, however, first added 15 to the number and then divided it by 5, getting 148 as the answer. What should have been the correct answer?

What is the remainder when (120)188 is divided by 7?

What is the unit digit of the product of all even numbers between 1 and 11?

When a number is divided by 136, it leaves a remainder of 36. If the same number is divided by 17, what will be the remainder?