The US spy agency aka NSA publishes on its website a riddle written by one of their employees that ordinary people can try and solve. They are all published in "Puzzle Periodical." Of course, some of them may be easy to solve but others demand solid mathematical knowledge or the ‘ability to think abstractly.’ Here are 6 of the NSA’s brain-teaser you can try your hand at. Give it a try!
Discover 37 of the best paying jobs in America all of which earn over $115,000 per year.
In China, “nail houses” are the homes that belong to people who refuse to make room for real estate development which is growing fast lately. This term is actually a pun coined by developers that refers to nails that are stuck in wood, and cannot be pounded down with a hammer.
Here’s why M1 Abrams is one of the best tanks to use on the battlefield.
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