Which is heavier: a ton of bricks or a ton of feathers?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

How far can you walk into the woods?

Can you fill the blank with the correct number?

6 30 870 756030 _____

What have one eye but still cannot see?

Can you tell a 3D object that has just two surfaces?

What is the riddle which can be asked all day with a different correct answer each time.

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

What can go up a chimney down, but can’t go down a chimney up?

The centre of the third figure is empty. What digit should fit inside?