What does an Island and the letter T have in common?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

Count the number of triangles in the given picture.

What is the unique property of the following words ?
* Revive
* Banana
* Grammar
* Voodoo
* Assess
* Potato
* Dresser
* Uneven

Can you place three balls such that the equation shown in the picture holds true?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

What has no start, end, or centre?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Buy me, smell me or deliver me, I do not change.

Who am I?

A man dies of old age on his 25 birthday. How is this possible?