John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?
When can we add 2 to 11 and get 1 as the correct answer?
A woman shoots her husband. Then she holds him under water for over 5 minutes. Finally, she hangs him. But 5 minutes later they both go out together and enjoy a wonderful dinner together. How can this be?
Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?
What country can make you shiver?
Which flower has two lips?
I can turn polar bears white. I can make anyone dance. I can make everyone cry I can make your hands clap I can make you thin. I can make you smile. I can make you smile Can you guess the riddle?
Can you make a six-letter word using the letters N, A and B ?
What's the best place to go shopping in the ocean?
What kind of tree can you carry in your hand?
If it took eight men ten hours to build a wall, how long would it take four men to build it?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.