There are 2 sand hourglasses. The small one can measure 5 hours and the large one can measure 7 hours. How can we measure 16 hours with 2 sand hourglasses running together ?
How many pluses should we put between the digits of 987654321 to get a total of 99, and where?
Can you name four days which start with the letter 'T'?
What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?
Find the next number in the series? 2, 12, 36, 80, 150, 252, 392, _ ?
I travel all around the world but always stay in the corner. What am I?
A Child was born in Lahore, Pakistan. Still child is not a Pakistani citizen.why ?
We can be boring,Or interesting. We can be long,Or short. We can have pictures,Or just words. Many love us,But many also hate us. What are we?
What building has the most stories?
An ape is trying to climb on a pole that is 60 feet high. Due to the slippery surface, the ape climbs 3 feet in a minute only to slip back 2 feet. How much time do you think the monkey will take to reach the top of the pole?
Solve this riddle by finding the odd one out from the rest.
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.