What is always in front of you but can’t be seen?
How many times can you subtract the number two from the number fifty?
Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.
The dirtier I get, the whiter I look. Who am I?
How can you make a TV, a bed, a dog, and a car liquid?
Two men play a dice game involving roll of two standard dice. Man X says that a 12 will be rolled first. Man Y says that two consecutive 7s will be rolled first. The men keep rolling until one of them wins. What is the probability that X will win ?
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 ?
Replace the question mark in the picture below.
A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?
Count the number of squares in the picture below.
Can you Find and name the hidden bird in the picture below ?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
