using four eights (8) and a one (1) and one mathematical symbol , create the number 100

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?

what does the below rebus means?

Joseph buys three kinds of chocolates for 100 rupees. The first one is priced at 5 rupees, second one at 3 rupees and third one at 0.5 rupees.

If he bought 100 chocolates in total, how many pieces do you think he bought each chocolate?

What can you hold in your right hand, but never in your left hand?

Why are televisions attracted to people?

What goes up but never comes down?

Can you make four (4) nines (9) equal 100?

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