Give 5 odd and 5 even composite numbers?

What is the probability of a number picked from first twenty natural numbers is even composite number?

What is the smallest odd composite number?

Which of the following is not a composite number?

Which number is not a prime number nor a composite number ?

What is the smallest composite number?

Statement (X): HCF of any two consecutive numbers is 2, Statement(Y): 2 is the only even prime,Statement (Z): 9 is the least composite number.