If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?
I have a head like a cat and feet like a cat, but I am not a cat. What am I?
Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?
The product of three consecutive numbers is 7980. Then the sum of these consecutive numbers would be?
If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?
How many letters are in the alphabet?
A number can be multiplied by multiple of nine i.e 9 18 27 36 45 ... and the resulting number consist of only one digit. Can you identify the number ?
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?
f you were running a race, and you passed the person in 2nd place, what place would you be in now?
'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?
It can't be seen, can't be felt, can't be heard, and can't be smelt. It lies behind stars and under hills, And empty holes it fills. It comes first and follows after, Ends life, and kills laughter. What is it?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.