All odd numbers are prime numbers. Is this statement true or false?

Two relatively prime numbers need not be prime numbers.Is this statement true?

Two relatively prime numbers need not be prime numbers. Is this statement true?

Consider the following statements A.The sum of two prime numbers is a prime number. B. The product of two prime numbers is a prime number. Which of these statements is/are correct?

What is the smallest odd prime? Is every odd number a prime number? If not,give an example of an odd number which is not prime.

The smallest odd prime number is

The square of an odd number is always odd .Is the given statement true?

The number of all prime numbers less than 40 is ..