I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?
What came first, the chicken or the egg?
A blonde put eyeliner on her head. Why?
James bond was pushed out of an aeroplane without any parachute. He survived, How come?
It belongs to you, but other people use it more than you do. What is it?
All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two. Can you tell me how many flowers I have?
What always comes into a house through the keyhole?
Mr Red Lives in the red house. Mr Green Lives in the greenhouse. Mr Yellow Lives in the yellow house. Who lives in the Whitehouse?
A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?
What is the centre of gravity?
What can jump higher than a building?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.