I have a clock(12-hour format) and both the needles of the clock overlap at 12:00. After how much time, they will overlap again?
Before Mount Everest was discovered, what was the highest mountain in the world?
What word begins and ends with an E, but has only one letter?
What has to be broken before you can use it?
They do not possess flesh or feathers or scales or bone But still, they are blessed with fingers and thumbs of their own.
Begin with a word, five letters to my name, Remove the first and last but I am the same Take out my middle and still, I remain. What word am I?
What is the Surname of Barbie Doll?
You Throw The Outside, Cook The Inside Eat The Outside, Throw The Inside. What Is It?
Twice ten are six of us, Six are but three of us, Nine are but four of us; What can we possibly be? Would you know more of us? Twelve are but six of us, Five are but four, do you see? What are we?
Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?
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?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
