Prove that the product of two even numbers is an even number.

Prove that the product of two odd numbers is odd.

Prove that the sum of two odd numbers is even.

The product of two consecutive odd numbers is 99.

Prove that the sum of three consecutive even numbers is divisible by 6.

Find the sum of first n even numbers.

Every man who has lived on earth has made a certain number of handshakes. Prove that the number of men who have made an odd number of handshakes is even.

Which of the following sentences are statements? Give reasons for your answer The square of a number is an even number.

Which of the following arguments are correct and which are not correct? Give reasons for your answer. If a die is thrown, there are two possible outcomes - an odd number or an even number . Therefore, the probability of getting an odd number is 1/2

State whether the following statements are true or false. Give reasons for your answers. The sum of two even number is even .