Scientific Maths

What's the next in the series?

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




Similar Riddles

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

Asked by Neha on 12 May 2024


A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Asked by Neha on 29 Mar 2024

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

Asked by Neha on 24 Feb 2024


What is the next number in this series?

4,12,84,3612....

Asked by Neha on 18 Mar 2023

What number divided by 4 is the same as that number minus 4?

Asked by Neha on 09 Oct 2025

'Ferrari driver' easily beats the 'force driver' in a two-car race. How did Indian newspapers truthfully report so to look as a 'force drive' had outdone the 'Ferrari driver'? Think!!!

Asked by Neha on 22 Nov 2024


A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?

Asked by Neha on 20 Dec 2024

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Asked by Neha on 08 Sep 2025

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Asked by Neha on 06 Oct 2024


Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Asked by Neha on 14 May 2021

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