Splendor

No — you may take 2 tokens of the same color only if there are at least 4 tokens of that color available when you take them (Rulebook p.3).

You must immediately return tokens until you have 10 or fewer; you may return some or all of the tokens you just drew (Rulebook p.3).

You may not have more than three reserved cards; reserving is the only way to get a gold joker and if no gold remains you still may reserve but receive no gold (Rulebook p.3).

At the end of your turn you automatically receive any noble for which you meet the bonus requirements, you cannot refuse a noble, and if eligible for multiple nobles you choose which one to take (Rulebook p.3–4).

Yes — each bonus from a development card acts as a permanent token of that color and reduces the token cost accordingly; you can purchase cards using bonuses plus tokens and even buy without spending tokens if bonuses cover the cost (Rulebook p.4).

When a player reaches 15 prestige points finish the current round so all players have played the same number of turns, the highest prestige wins, and ties are broken by the fewest development cards purchased (Rulebook p.3–4).