Question:
Which of these numbers are prime numbers: 7, 8, 9, 10, 11, 12, 13, 14?
Answer:
7, 11, 13.
Try another Brain Teaser:
What is wider than life itself
Longer than forever
So simple it's complicated
Travels but never leaves the spot
Puts others in danger but no one gets hurt
And reaches to worlds unknown?