Scientific Maths

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?




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Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

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There are a hundred statements.

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Third person says: At least three of the statements are false.

Fourth person says: At least four of the statements are false.

..

..

..

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Find the last number in the series below:

voN luJ yaM raM ---

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You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

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There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.