Hard Aptitude Number

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




Similar Riddles

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

Count the Triangle

Asked by Neha on 11 Apr 2024


Five thieves looted a bank and they ran away in a car. The bank staff informed the police and they began the search of their car in their jeep. They found them on a road and chased them eventually catching them. The light that is used to fill the number plate was broken on the thieves' car. Also, the headlights of the jeep police were not working. How were the police able to catch the thieves then?

Asked by Neha on 28 Nov 2024

Prove that twice of ten is the same as twice of eleven.

Asked by Neha on 26 Feb 2025


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

What does below pictogram mean?

Compile the Pictogram

Asked by Neha on 11 Aug 2021

I have Rs.50 and I spend it in the way as below.

Fund and Spends

Asked by Neha on 01 Oct 2023


I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

Asked by Neha on 24 Mar 2025

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

Asked by Neha on 19 Jul 2023

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Asked by Neha on 17 Mar 2025


A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?

Asked by Neha on 06 Dec 2023

Hot Articles

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.