Identify the 10 differences between the two given pictures.

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

While sitting in the Car, John suddenly finds that one of the wheels was missing. John noticed that a killer is approaching towards him. John cannot get out of the car.

How will John escape?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?