How can you spell "White of an egg" in one word? Hint: I know you can spell coke, poke, and joke.
Living above a star, I do not burn Eleven friends and they do not turn I can just be visited in a sequence, not once or repeatedly PQRS are my initials Can you tell my name accurately?
Find the next number in the sequence 5 12 24 36 ?
If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?
If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?
How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?
Why is the Hole below a Lock?
What jumps when it walks and sits when it stands?
The following alphametic has only one solution. Can you find it? ENLIST + SILENT + LISTEN = ANAGRAM PS: You may start the number from 0.
Can you find the missing number in the third row? 35 20 14 27 12 18 5 2 ?
What month of the year has 28 days?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.