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’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?
The more of this there is, the less you see. What is it?
I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?
Do You See It?
The more you take me, the more you leave me behind. Who Am I?
I get hot but I never sweat, I cook food but I am not a chef, I have a door but you can't enter me, I have a light but I am not a lamp. Who am I?
What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?
How many letters are in the alphabet?
I know a nine-letter word having only one vowel. Do you ?
I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.