We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Alex is stranded on an island covered in forest.
One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.

There are cliffs around the island, so he cannot jump off.

How can the Alex survive the fire? (There are no buckets or any other means to put out the fire)

What is the end of everything?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Can you place six X (crosses) in below board without making three in a row in any way ?

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.

what does the below math rebus puzzle mean?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?