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

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

Can you write down eight eights so that they add up to one thousand?

Can you find the mistake in the below statement?

You need to move three matchsticks to form three squares. Can you do it?

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?

In the Thar desert, 3 men found a big 24L Jar is full of water. Since there is a shortage of water so they decided to distribute the water among themselves such that they all have equal amounts of it. But they only have a 13L, a 5L and an 11-litre Jar.

How do they do it?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

Why Aeroplane windows are round?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?