I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?
what's the probability of getting a king or a queen from a pack of 52 cards?
I have branches, but no fruit, trunk or leaves. What am I?
What work can one never finish?
As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.
How could a baby fall out of a twenty-story building onto the ground and live?
If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten. How is this possible?
Where do you go to learn how to make ice cream?
Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?
What came first, the chicken or the egg?
What can you deduce from the following BrainBat? CRY LMKI
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.