Answer: Jack the Drought
In chapter 809 and episode 759, Jack is revealed to have a bounty of 1 billion making him the first individual revealed to have a ten-figure bounty.
From Quiz: "One Piece" Quiz (Up To Reverie Arc)
Answer: Minister of Cheese
Charlotte Mont-d'Or is the Minister of Cheese.
The Minister of Cream is Opera, the Minister of Candy is Perospero, and the Minister of Jam is Dacquoise.
From Quiz: "One Piece" Quiz (Up To Reverie Arc)
Answer: Roronoa Zoro
This is ironic because of Zoro's cruddy (or more, non-existent) sense of direction. He's able to get there first because Perona guides him there.
From Quiz: "One Piece" All-Around Quiz
Answer: SMILE
Doflamingo, Caesar, and Kaido named the fruit SMILE after the side effect of the failure fruits, as if to mock the misfortune of those who ate it.
From Quiz: "One Piece" Quiz (Up To Wano Arc) Part 2
Answer: Pluton, Poseidon, and Uranus
The three ancient weapons are:
Pluton - a battleship
Poseidon - Princess Shirahoshi
Uranus - unknown
From Quiz: "One Piece" Quiz (Up To Reverie Arc)
Answer: Silvers Rayleigh
Rayleigh is away training Luffy, and there is no mention that he helps defend the Sunny even after he returns six months before the two years are up.
From Quiz: "One Piece" All-Around Quiz