Hard Aptitude Number

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




Similar Riddles

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

Asked by Neha on 12 Feb 2024


In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

Asked by Neha on 29 Jun 2023

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

Asked by Neha on 08 Sep 2021


Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Asked by Neha on 17 May 2021

I can write cow in 13 letters.

Can You?

Asked by Neha on 03 Oct 2024

Who always enjoys poor health?

Who enjoys poor health?

Asked by Neha on 22 Sep 2021


A journalist was investigating a sacred cult in the jungles of Africa when he was caught by one of the person. He was confined in a cave till the leader arrived. The leader told him that he need to tell him a statement. If he thinks the statement is true, then the journalist head will be chopped off. If he thinks that the statement is false, his head will be smashed with a hammer.

What statement did the journalist make to survive?

Survive in Jungle

Asked by Neha on 19 Mar 2021

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

Asked by Neha on 06 Feb 2021

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?

Asked by Neha on 28 Apr 2023


Why Wine Glass Stem is so long?

Wine Glass

Asked by Neha on 24 Jul 2023

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Amazing Facts

Out of the Box

The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.