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.
Find the missing number in the series below 13 -21 34 -55 ? -144
By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.
When is the top of a mountain similar to a savings account?
1 + 9 + 8 = ? considering, 28 + 8 + 92 = 10
Check out the number list below and find what number comes next in the sequence. 111 , 113 , 117 , 119 , 123 , 137 , ?
They do not possess flesh or feathers or scales or bone But still, they are blessed with fingers and thumbs of their own.
During which month do people sleep the least?
Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?
What number do you get when you multiply all of the numbers on a telephone's number pad?
Can you find out which triangle will have a bigger area among the following? 1. A triangle with sides 300, 400 and 500 2. A triangle with sides 300, 400 and 700
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
