The ages of a father and son add up to 66. The father's age is the son's age reversed. How old could they be? (3 possible solutions).
What is the difference between a jeweller and a jailer?
Find the next number in the series below 21 32 54 87 131 ?
He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?
The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total. How much time will he take to have all the five tablets?
I am a prime number. The double of myself is equal to the square of me. which number am I?
Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?
Find the next number in the series 12, 20, 40, 72, 116, 172 ?
If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?
I have an apple tree , number of apple in this tree get doubles every week. On 30th week , the tree gets completely filled with apples :-) Can you tell me , on what week does my tree is half covered with apples ?
A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
