C is the programming language (some) games are written in, your question makes no sense.
Some C programs can be compiled in C++, yes.
C programs don't contain flowcharts.
A programmer can write programs in C, but C can't write anything by itself.
You will be able to understand C programs. Also to write C programs.
You can find C programs at http://talentsealed.blogspot.com.
C programs can be compiled with a C compiler. Are you surprised?
A C++ program can be used to write C programs that will display 10 lines of biodata. Many types of C programming can be written with a C++ program.
For a guessing game all you need is powerpoint. Most simple games can be made with Java or C++.
Video tutorials on the XOAX website. XOAX is a website where people interested in C programming can share tips and learn from others. There is a forum, games, a shop, and a blog.
Yes.
No, but source-programs written in C language are.
Internet Browsers, Office programs, games...