Hard Aptitude Number

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?




Similar Riddles

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

Asked by Neha on 30 Mar 2023


There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?

Asked by Neha on 20 Jun 2025

How is a fly different from a mosquito?

Asked by Neha on 15 Jul 2023


A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

Asked by Neha on 02 Nov 2023

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Who is Who

Asked by Neha on 16 Mar 2021

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

Asked by Neha on 08 Aug 2025


Can you count the number of triangles in the given picture?

Count The Triangles <br />

Asked by Neha on 29 Dec 2024

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

Asked by Neha on 29 Sep 2025

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

Asked by Neha on 19 Feb 2025


There is something which you can be arrested for attempting but not for successfully completing.

Asked by Neha on 30 Apr 2024

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Amazing Facts

Word ladder puzzle

The word ladder puzzle was invented by Lewis Carroll, author of Alice’s Adventures in Wonderland.