Why Aeroplane windows are round?

How many triangles are there in the picture below?

You can see it everyday, But cannot touch it at will. What is it?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

What does this simple rebus mean?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

Find the 8 in the below-given Image.

A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?