You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?
Out of the nine cats that you can see in the picture, there are only two that are completely identical. Can you find them out?
If nine thousand, nine hundred nine dollars is written as $9,909, how should twelve thousand, twelve hundred twelve dollars be written?
Jenifer and Jesica are having a conversation. Jenifer: I am definitely not over 30. Jesica: I am 28 and you are surely 5 years older to me at least. Jenifer: No, you are at least 29. You are told that both of them are lying throughout in the conversation. Can you find their respective ages?
How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?
By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?
Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water. How many frogs are there on the log at this moment?
I come in different shapes and sizes. Parts of me are curved, other parts are straight. You can put me anywhere you like, but there is only one right place for me. What am I?
I have feet, but no legs. Which animal Am I?
If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?
That attorney is my brother, testified the accountant. But the attorney testified he didn't have a brother. Who is lying?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.