What is the centre of gravity?
I am sure no one can have two things for dinner. what are they?
Which flower has two lips?
When can we add 2 to 11 and get 1 as the correct answer?
I cannot talk, but I always reply when spoken to. What am I?
I have branches, but no fruit, trunk or leaves. What am I?
A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?
Can you start the fire using two pieces of wood?
If two's company, and three's a crowd, then whats four and five ?
Can you name four days which start with the letter 'T'?
Look at me. I can bring a smile to your face, A tear to your eye, Or even a thought to your mind. But, I can't be seen. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.