Does man have a free will ?

It's primary use is as a adjective.

So let me ask. Is God responsible then for sins entrance into the world? He did create Adam knowing what would occur right?
No God is not responsible

that claim does not fit the definition

  • a person or thing that gives rise to an action, phenomenon, or condition:

Since God has no free will neither does man ?

Did adam have a free will to choose to obey God or the devil ?

If not then man in no more than a robot with no choice, no will. God created adam as a robot with the sole purpose to sin.

And everything God created was good including making adam sin since he had no free will to do anything else right ?
We only have choices that were given to us by God..
You can only choose from what is available to you
God provides a way for a believer to avoid sin

1 Corinthians 10:13 (KJV 1900)
13 There hath no temptation taken you but such as is common to man: but God is faithful, who will not suffer you to be tempted above that ye are able; but will with the temptation also make a way to escape, that ye may be able to bear it.