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

Can you solve the below geography rebus by decoding the below rebus ?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

The great emperor Akbar once ruled India. He was well known for his intelligence. But along with that, he was known for the Nine Gems in his court. One of the nine gems was Birbal, a quick witted and extremely intelligent man. The stories of his wit were widely popular.

Once a king ruling in a distant land heard of Birbal. To check his wit, he sent an invitation and called him to visit his land. Akbar allowed Birbal to go and he took off on the journey.

Upon reaching that kings kingdom, he was welcomed with flowers. He was then escorted to the palace of the king. Upon entering the palace, Birbal found that there were six people sitting in front of him adorning the same robe. They were also lookalike and it was hard to judge who the real king was.

After a couple of minutes, Birbal approached one of them and bowed in front of him greeting him.

That was the real king. How did Birbal know who was the real king ?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

10+10 and 11+11 can give you the same answer.

Explain how?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Before Mount Everest was discovered, what was the highest mountain in the world?

Replace the question mark with the correct number in the below-given picture?