By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

What do you call a fish without an eye?

How can you tell a raw egg from a hard-boiled egg?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

Replace the question mark with the correct number in below Picture:

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?