Cristina was born in 1888. She just had her 30th birthday today how did that happen?
Replace the (?) with the correct mathematical signs to make the expression equal to 59. 18 ? 12 ? 4 ? 5 = 59
Move four matchsticks to the below square to form three squares?
Why do you find that most of the buildings are deprived of the 13th floor?
Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()
Which Number is the odd one out? A) 7145 B) 2716 C) 5321 D) 4135
What part of the chicken has the most feathers?
A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?
On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday. Is this even possible? How can it be?
What has one letter and starts with an E?
What brings you down but never up?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.