Riddle: I am an odd number. Take away a letter and I become even. What number am I? Answer: Seven
Riddle: If two’s a company, and three’s a crowd, what are four and five? Answer: Nine
Riddle: What three numbers, none of which is zero, give the same result whether they’re added or multiplied? Answer: One, two, and three
Riddle: Mary has four daughters, and each of her daughters has a brother. How many children does Mary have? Answer: Five—each daughter has the same brother.