Hard Number Series Puzzle

What number comes next in the series?

5 15 5 18 5 24 14 20 _




Similar Riddles

Which is the correct shadow of the bird?

Correct Shadow Riddle

Asked by Neha on 23 Aug 2021


How is the moon similar to a dollar?

Asked by Neha on 26 Sep 2023

There was a strange boy who was born before his father. How can this be possible?

Asked by Neha on 06 Jul 2024


Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Asked by Neha on 22 Sep 2023

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

Gear Rotation Riddle

Asked by Neha on 21 Aug 2021

A detective visits his friend John just to discover that John's neighbour Dr Jacob was murdered. Dr Jacob, who is a mathematician wrote the murderer's name in a code word "Hcqtfz". There were five suspects
1. Ajit
2. Pankaj
3. Ganpat
4. Deenu
5. Hariya

The Detective was instantly able to find the murderer.
Can you?

Asked by Neha on 06 Jan 2026


Can you place six X (crosses) in below board without making three in a row in any way ?

Kris Cross Riddle

Asked by Neha on 17 May 2021

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?


Floating Fish

Asked by Neha on 14 May 2021

It belongs to you, but other people use it more than you do. What is it?

Asked by Neha on 19 Feb 2022


When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

Asked by Neha on 20 Aug 2025

Hot Articles

Amazing Facts

Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.