Replace the question mark with the correct number below.
Write the next letter in this sequence. O, T, T, F, F, S, S, E, __ **Hint: It is a Number Series Puzzle
If a wheel has 54 spokes, how many spaces are there between the spokes?
Which is heavier: a ton of bricks or a ton of feathers?
Why Aeroplane windows are round?
In the four images below, can you find the odd one out?
What is next number in the pattern below: 131 517 192 123 ?
What jumps when it walks and sits when it stands?
Find out the number of circles in the given picture having Illusion
The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills. How long do you think you have before you run out of pills?
Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.