Forwards I am heavy, backward I am not. What am I?
If Japan and Panama decided to merge into a single country, probably people will name it Japanama. Can you think of two more such country's unions that could produce similar names like Japanama by overlapping their three letters?
What building has the most stories?
What is the end of everything?
What can you see in the middle of March and April that you can never see in any other month?
A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?
Which fur should we be getting from the Lion?
Who can jump higher than a Mountain?
John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?
Why is 6 afraid of 7?
Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
