2, 3, 5, 9, 17, _ What is the next number in the sequence?
who is silent in the parliament?
How is the moon similar to a dollar?
What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?
Can you spot the man between the coffee bean in the picture below ?
An ant is travelling on a 1-meter-long rope at 1 cm/second but also the entire rope is being stretched by an extra 1 meter/second. Is it possible for the ant to reach at the end of the rope?
Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?
Can you find the thief by just looking at the picture below?
Which wheel of car does not rotate when you turn your car right?
I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?
What does this Rebus Picture mean?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
