Can you control thoughts?
Yogis do this.
I can't control YOUR thoughts. But I can control mine.
yes you can i do just kidding
Yes. Learning how to meditation which will help you to controlling your mind.
Sure, don't think about brown puppies. So what are you thinking about right now? ;)
Not without occasional difficulty.
Yeah, you can. Your brain is only capable of intently entertaining a single thought at a time. If you try to avoid thinking about something, you're already thinking about it. Instead intently think about other things. Learn calculus if it helps.
NO. Thought is natural. You can force a thought for a while, but you can't control it.