what does the below math rebus puzzle mean?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

If eleven plus two equals one, what does nine plus five equal?

When does a USA Potato change its nationality?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

How can one talk without saying a single word?

What happened when the wheel was invented?

The below mentioned letters have been placed in a order using a logic.

DEAD, BALL, FEAR, SHOP

Can you find the logic?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.