There was an aeroplane crash, every single person died, but two people survived. How is this possible?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

There was a strange boy who was born before his father. How can this be possible?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

I am sure no one can have two things for dinner. what are they?

You are given 2 eggs.
You have access to a 100-storey building.
Eggs can be very hard or very fragile means it may break if dropped from the first floor or may not even break if dropped from 100th floor, Both eggs are identical.
You need to figure out the highest floor of a 100-storey building an egg can be dropped without breaking.
Now the question is how many drops you need to make. You are allowed to break 2 eggs in the process

What does this mathematical rebus means ?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?