Replace the question mark with the correct number below.
Find the next number in the sequence 1, 2, 6, 21, 88, __?
Look at the picture and find out which square is not linked with any of the other squares.
What is red and smells like blue paint?
John: "Hi Teacher, What is your favourite movie ?". Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen". Ten seconds later... John replied I got it. Do you?
What is in seasons, seconds, centuries and minutes but not in decades, years or days?
Why do you find that most of the buildings are deprived of the 13th floor?
Solve the mathematical equation in the picture below.
You need to arrange three 7 and mathematical symbols to form number 1?
Here is a conversation between a couple who both are software professionals. Husband: Hey! What is your date of birth? Wife Replied Angrily: It is 591062400 Husband after doing some calculations replied, "Got It". What is the DOB of the wife?
If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following: 21 Q 7 R 9 S 10 P 13
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
