Find The Next Number in this series. 1, 2, 6, 42, 1806 ?
I know a nine-letter word having only one vowel. Do you ?
Can you solve this picture maths equation?
You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)
In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?
If six children and two dogs were under an umbrella, how come none of them got wet?
What does below pictogram mean?
What is the last thing you take off before bed?
If 1+9+8=1, what is 2+8+9?
I possess a head I flaunt a tail But I don't have mouth or legs Can you find out who I am?
In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.