what does the below math rebus puzzle mean?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

Who is that with a neck and no head, two arms and no hands? What is it?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

What number divided by 4 is the same as that number minus 4?

A woman named Maria was at the funeral of her mother. She met a nice young man that she had never seen before and after the service, they spent a bit of time together. Then she got busy and didn’t get his name or phone number before he left. She tried to find him, but no one knew who he was or how to contact him. A few weeks later, Maria’s older sister dies and the police suspect murder. Who killed the sister?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

Why are all black people so quick ?