What has one letter and starts with an E?
How many times can you subtract the number two from the number fifty?
What is the Surname of Barbie Doll?
I am under you when I am whole. I shift above you if you remove the first letter. I come all around you if you remove the second as well. Can you tell me who I am?
Manish has to secure 40% marks to pass his B.tech final exams. He got just 40 marks and failed by 40-marks. What is the maximum marks?
He does not have any heart but still, He manages to live. If you kill him, you will eventually die but yet you kill him. He cannot run, who is He?
A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log. Can you calculate the weight of the entire wooden log?
If you say my name, I will no longer exist. What 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?
It comprises roots which nobody sees, Much taller than those trees, Up and up it goes, Still it never grows?
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?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.