Scientific Maths

What's the next in the series?

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




Similar Riddles

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

Asked by Neha on 17 May 2021


A woman is sitting in her hotel room and hears a knock at the door. She opens the door to see a man whom she’s never met before. He says, “I’m sorry, I have made a mistake, I thought this was my room.” He then goes down the corridor and into the elevator. The woman goes back into her room and calls security. What made the woman so suspicious of the man?

Asked by Neha on 22 May 2025

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

Asked by Neha on 22 Dec 2020


What breaks yet never falls, and what falls yet never breaks?

Asked by Neha on 09 Mar 2025

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Asked by Neha on 07 Feb 2025

John was piloting a plane behind a car but was never able to overtake it. Why?

Asked by Neha on 04 Dec 2023


A girl was standing near the window thinking something. All of a sudden she decides something and throws something out of the window. She dies very soon after throwing it. She was perfectly healthy and had no disease or allergy. No one killed her and she did not commit suicide.

Can you think of any possible explanation that is logical as well for what happened there?

Asked by Neha on 25 Aug 2021

Wednesday, Steve and Pam go to a restaurant to eat lunch. After eating lunch, they pay the bill. But Steve and Pam do not pay the bill. So…who does?

Asked by Neha on 26 Jun 2025

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Asked by Neha on 08 Nov 2023


You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Asked by Neha on 12 Feb 2022

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Challenging

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