Yes
Mercury is closest to the Sun and it is not close to any moons
No, Earth's Moon it is the closest - since Mercury and Venus have no moons.
The moons gravitational pull on the earth lifts the Earth's oceans causing the ebb and flow of the tides.
No, because if one did have the gravitational effect of the planet will be much greater.
Charon.
The oceans
Venus has no moons.
Venus
Europa has frozen oceans.
That would be Venus.
7,566 moons
Everyone has moons on their fingernails and toenails. It's the little white portion on the nail that is closest to the skin.