Yes
u unlock a lab and u do it there
No.You can put monsters in the graveyard only when your monsters are defeated.
The yugioh card "toon world" does nothing unless you have toon monster cards.Toon world is required for you to activate them and put them into play.
No, you cannot put down a Draw 4 card on top of a Draw 2 card in the game.
there is no such card with an effect like that. you could be referring to parasitic parasite, which is special summoned to their side of the field when they draw it and they take 1000 damage.
If you put a queen, king, or ace you get 4 tries to get another face card and if you put down a jack you get 1 try.
You put down one card each turn, unless told to draw a card or are skipped.
Yes, in the game of Uno, you can say "Uno" before you put down your second-to-last card.
Yes, this is what you normally do since you can't place them in face down attack position.
No, in Uno, you can only put down one card at a time.
You can't create real card, these are basically the play money of yu-gi-oh, you can't use them. look on the website in tutorials that's where i found the answer I would put it here but it is to long to put here
Yes, you can say "uno" before putting a card down in the game.