Hard Aptitude Number

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




Similar Riddles

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

Aeroplane Hijack Riddle

Asked by Neha on 02 Apr 2021


A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

Asked by Neha on 26 Apr 2025

Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?

Asked by Neha on 10 Aug 2021


Count the number of balls in picture below:


Count The Balls

Asked by Neha on 21 May 2021

Count the number of lines in the image below ?

Riddles From Picture

Asked by Neha on 03 Feb 2021

Trying to tease Birbal, Akbar gave him one gold coin and ask him to buy
* something for him to eat
* something for him to drink.
* something to feed the cows
* something to plant in the garden
and most important you need to buy only one thing.

What must Birbal buy to silence Akbar?

Asked by Neha on 10 May 2021


You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

Asked by Neha on 15 Apr 2023

The world's largest Thanksgiving turkey was on display at a fair. Everyone was admiring it when suddenly a woman ran up and shot the turkey and left. Everyone knew her yet nobody made any attempts to stop or report her. Why?

Asked by Neha on 24 Feb 2023

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Asked by Neha on 21 Feb 2024


Find the hidden tiger in the given optical illusion ?

Find the Tiger

Asked by Neha on 13 Jan 2021

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Amazing Facts

Rubik’s Cube

The inventor of the Rubik’s Cube didn’t realize he’d built a puzzle until he scrambled it the first time and tried to restore it.