Can you spot the hidden girl in the picture below?
You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game. Would you want to play first or second? PS: The sum should be exactly 15.
Which five letter word can be added at the end of below word to form a valid word? > Pin > Check > Boiling > View
Make a sentence consisting of three words that have the whole alphabet.
What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?
Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3. (You can use one number only once)
How can you tell a raw egg from a hard-boiled egg?
Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time. However, they still manage to cross the river. How is it possible?
The following "Brain Bat" means Slow Down. S L O W Using the same logic, can you tell us what does the following Brain Bat means ? E V I G
Can you convert the number zero(0) into a positive number using just one mathematical operator ?
I look at you, you look at me I raise my right, you raise your left. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
