how char accepts value??

Answer 1

just equate it with one character surrounded by a single quote.

example:
char yourChar = '?';

Hope that helps!

Answer 2

Just use it like a char :
char h = '5';
Console.WriteLine(h);
//Output 5 (like text)

Answer 3

24

Answer 4

it can take only 1 character , for example 1,2,5,×,_,',g,B,. and so on. It's just 1 character from your keyboard