Can you replace the question mark with the correct letter? 6 + 6 + 6 = N 7 + 7 + 7 = E 8 + 8 + 8 = R 0 + 0 + 0 = ?
Look at the picture and find out which square is not linked with any of the other squares.
Can you discover the missing number in this series? 37, 10, 82 29, 11, 47 96, 15, 87 42, ?, 15
What do you think with the below Picture ?
Can you spot what's wrong with the following sentence? PETER WAS ANGRY AT HIMSELF BECAUSE HE ACCIDENTALLY LEFT THE THE KEYS TO HIS CAR AT HIS FRIEND'S HOUSE.
Can you decipher these quotes by Albert Einstein? Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.
Replace the question mark with the correct number. 2 + 2= 4 3 + 3= 18 4 + 4= 48 5 + 5= ?
Look at this sequence from top to bottom. What is the next number in the sequence? 1 11 21 1211 111221 312211
It is a six-letter word. The first four letters are me. The second and last letters are the same. The fourth second and last letter is payment. Who is it?
I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?
Which digit occurred maximum times between the number 1 and 1000?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.