There are five vowels (a, e, i, o, u) in the English language. Can you tell us a word that contains all these vowels?
How many times can you subtract the number 5 from 25?
In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?
On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off. How many candles Sayna have at the end?
What jumps when it walks and sits when it stands?
If six children and two dogs were under an umbrella, how come none of them got wet?
I have a head like a cat and feet like a cat, but I am not a cat. What am I?
Which point will the car reach to go out?
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?
How can you write nineteen in a manner that if we take out one, it becomes twenty?
I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.