What month of the year has 28 days?
If you say my name, I will no longer exist. What am I?
When my father was 31 I was 8. Now he is twice as old as me. How old am I?
I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?
If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?
It comprises roots which nobody sees, Much taller than those trees, Up and up it goes, Still it never grows?
There are five vowels (a, e, i, o, u) in the English language. Can you tell us a word that contains all these vowels?
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?
The more you take me, the more you leave me behind. Who Am I?
A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?
I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.