What is always in front of you but can’t be seen?
There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?
What word is pronounced the same if you take away four of its five letters?
What English word has three consecutive double letters?
If nine thousand, nine hundred nine dollars is written as $9,909, how should twelve thousand, twelve hundred twelve dollars be written?
What has 88 keys?
I taste better than I can smell. Who am I?
I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?
What can you catch but never throw?
It is deaf, Dumb and Blind!!! Still, always tells the truth. What is it?
I have teeth but i don't bite. Who Am I ?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.