I travel all around the world but always stay in the corner. What am I?

In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

How many triangles are there on the puzzle below?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

In a kingdom, King George did not allow any citizen to visit the world outside. Also, only a person with proper paperwork was allowed to enter or he was sent back. A wooden bridge was what connected the kingdom to the world. The king had appointed a sharpshooter who would check the every five minutes on the bridge to check. After checking, he would go back to his hut and return exactly after five minutes again. The bridge took 9 minutes to cross.

A merchant was able to escape the kingdom without harming the shooter. How?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

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

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.