You can Set one monster, and as many S/T cards as you've got cards and open slots available.
simple 1 card per turn
You can set as many traps as you desire each turn, until you fill up the spell and trap card zone. You cannot have more than five traps on the field at once.
there are 3 foil cards 47 common cards but this deck sucks!
No, Quickplay Spell Cards must be Set on the field on a previous turn, if you wish to activate them during the opponent's turn.
regular spell cards can be activated only on your turn, quick play spell cards can be set then activated during your opponents or your turn, and spell cards with the infinity sign are treated like regular spell cards but stay on the field until it is destroyed traps cannot be activated from you hand they must first be set then activated on your next turn or your opponents turn knowing when to activate these spell or trap cards is tricky you have to know when to activate them or they will end up not helping you out at all
40-60 Yu-Gi-Oh! cards = a deck
Yes, they can. If you want to activate a Quick Play card in your opponent's turn though, you need to have Set it on the field in one of your turns.
A yu-gi-oh booster pack has 9 or 5 cards in it
A yu-gi-oh booster pack has 9 or 5 cards in it
A Yu-Gi-Oh! deck can have a maximum of 60 cards.
You can activate Quickplay Spell cards in your opponent's turn, if you have Set them on the field. As well as that, some of your face-up continuous and continuous-like cards may have a trigger than activates when a certain condition is met, these can activate in the opponent's turn too (Black Garden is one).
between 40 and 60 cards