A network of 20 x 10 squares is given to you. Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?
Using exactly three matchsticks, can you divide the area into two equal parts?
Can you count the number of squares in the figure below?
Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal? Note: 9 cannot be turned over to make it 6.
What is the word or phrase below? R | E | A | D
Who is generally closer to the kids, mom or dad? (it's a funny riddle)
A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?
Keyboard words are not in alphabetical order, Why?
I guess 76.8% of readers will like this riddle. What's the least number of people should read this post?
Find the next number in the series below 21 32 54 87 131 ?
Can you solve this picture maths equation?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
