Can you write down eight eights so that they add up to one thousand?
What is the next number in this series? 4,12,84,3612....
Can you find a five letter word that is left with only two letters if one is removed?
Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT. Hint: The grid reads the same across as down.
A word I know has six letters it contains, remove one letter and 12 remain. What is it?
What came first, the chicken or the egg?
How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?
Begin with a word, five letters to my name, Remove the first and last but I am the same Take out my middle and still, I remain. What word am I?
When 99 is considered higher than 100?
What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?
Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"? ( ) + ( ) + ( ) = 30
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.