What does this below rebus puzzle mean?

The answer I give is yes, but what I mean is no. What was the question?

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

A farmer went to a market and bought a wolf, a goat, and a cabbage. On his way home, the farmer came to the bank of a river and rented a boat. But crossing the river by boat, the farmer could carry only himself and a single one of his purchases: the wolf, the goat, or the cabbage. If left unattended together, the wolf would eat the goat, or the goat would eat the cabbage. The farmer’s challenge was to carry himself and his purchases to the far bank of the river, leaving each purchase intact. How did he do it?

Decode this picture on T-Shirt and tell what it says ?

How can you leave a room with two legs and return with six legs?

What Time Should the last watch show in the below figure?

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?