What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

What Deficiency does the below rebus represent?

VIT_MIN

Can anyone tell me a word in the English dictionary which has a silent 'z'?

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

How many words can a pen with half refill write?