What is the only letter in the alphabet that does not appear anywhere on the periodic table of elements?

What is the only letter in the alphabet that does not appear anywhere on the periodic table of elements?

Other Difficult Riddles

Find an English word that uses all of the following letters: PNLLEEEESSSSS

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This is in a realm of true and in a realm false, but you experience me as you turn and toss.

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You can tumble in it, roll in it, burn it, animal eat it. Used to cover floors, still used beyond stall doors. Freshens whatever it is placed on. Absorbs whatever is poured into it.

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When I get closer my tail grows longer, but when I go away my tail leads the way.

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Tall in the morning, short at noon, gone at night. But I'll be back soon.

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Riddle of the Day

Jun 10, 2026

I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?

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