Q.1.
Which number is the odd man out: 49, 15, 41, 9?
Q.2.
Which number is the odd man out: 64, 32, 144, 100?
Q.3.
How many prime numbers are there between 1 and 30?
Q.4.
Which two prime numbers have to be added together to give 38?
Q.5.
For those of you with stamina: How many prime numbers are there between 1 and 100 inclusive?
Q.6.
Which number is the odd man out: 71, 17, 11, 39?
Q.7.
What is the smallest prime number?