Our product and our sum always give the same answer. Who are we?
Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?
I look at you, you look at me, I raise my right, you raise your left. What am I?
I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?
Replace The Question Mark Below With the Correct Number. 2 {38} 3 4 {1524} 5 6 {3548} 7 8 {????} 9
It's a test that will check your IQ. Suppose you have one 11 minute hourglass and one 13 minute hourglass. Can you measure exactly fifteen minutes using them ?
If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age. How old will John be two years from now?
How many bananas can you eat if your stomach is empty?
What do you see in the image below
Can you find the missing letter in the sequence? S - T - I - L - ? - T - F - Y - C
What came first, the chicken or the egg?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
