Generally, yes. It depends on the house rules. It also depends on whether or not you can draw four to an ace, again, an issue of house rules.
In five card draw, once.
Pot of Avarice has an effect similar to that. You target five monsters in your graveyard, then on resolution it shuffles those five back into deck, then you draw two cards.
Five card charlie.
Note that there are no Official Poker Rules. House Rules apply and there are big differences from casino to casino (or kitchen table to kitchen table). Swapping three cards is the most common, but in a lot of places swapping four cards and sometimes all cards is in the rules. If you're playing a home game, you will have to decide amongst yourselves what to do. In my experience, you can draw any number of cards, between 0 and 5.
When you 'draw' a card, that means adding it to the cards in your hand. You do not add the five cards to your hand when resolving Cyber Jar, you simply take them from the top of the deck and look through them. They are still a part of your deck, you're just allowed to look through them during this resolution. But they never become part of your hand.
No cards are discarded in stud poker, you must play the cards you are dealt or you can fold. It is in draw poker that you can discard up to four cards.
In five card stud, there is only one way to make a royal flush. You have to be dealt exactly a royal flush. "Stud" means there is no draw or community cards, so in a five card hand you would have to have 10-J-Q-K-A of all the same suit. About a 1 in 40,000 chance.
The worst-case scenario is that the first 24 cards you draw are 6 of each suit. In that case, the 25th card will be the seventh card in one of the suits.By the way, since we are not talking about probabilities here, but about certainties, it makes no difference whether you replace the cards or not.
It is called a "Five card Charlie"
You are only allowed 11 cards as a maximum on a field, you have five monster card slots, five spell/trap slots, and a Field Spell Card slot.
Poker - is a card-game. Each person gets five cards, and can 'exchange' up to five cards twice. The aim of the game is to create a 'flush' - a sequence of five cards (preferably high values). Players can also win with a 'full house' - a group of three equal cards and a pair.
It's the same kind of game as Uno, but with an added twist of having an extra discard pile to play to and having both discard piles balanced on a... balancing device. In Uno you are trying to get rid of the cards from your hand by playing them onto the discard pile by matching color or number. For instance: if the discard pile has a Red 3 on it you can play any other Red card or any color 3. There are also cards that effect the player who goes immediately after you: Skip, Reverse, Draw 2 and Wild Draw 4. Skip makes the person after you miss their turn. Reverse makes the turn order go in the opposite direction(So if you're playing a 4 player game instead of the play order going 1, 2, 3, 4 it goes 4, 3, 2, 1(This takes place immediately, so if you're player number 2 player 1 would get another turn as soon as you lay down the card)) and Draw 2 makes the person who goes after you draw 2 cards instead of taking their turn. Wild allows the player with that card to decide what color the next card has to be, and Wild Draw 4 allows the player to decide the color of the next card AND the next player has to draw 4 cards instead of taking their turn. Uno Tippo plays the same but there are two discard piles to play onto and if you place one onto a pile and cause the scales to tip over you have to draw 2 cards. Here is a page with a little info on Uno Tippo: