How many planets are there in the solar system? How many moons does the third one have?
The solar system consists of 8 planets that orbit around the sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Earth, the third planet from the sun, is the only planet known to support life. It has one natural satellite, commonly referred to as the Moon, which has a significant impact on Earth's tides and is the fifth largest moon in the solar system.
Tell me about the 4 larger moons
Sure, here are brief overviews of the 4 largest moons in the solar system:

Ganymede: Ganymede is a moon of Jupiter and is the largest moon in the solar system. It is even bigger than the planet Mercury. It is primarily made of rock and ice and has a weak magnetic field.

Titan: Titan is a moon of Saturn and is the second largest moon in the solar system. It is known for its dense atmosphere, which is mostly nitrogen with clouds of methane. Titan is the only moon with a significant atmosphere.

Callisto: Callisto is a moon of Jupiter and is the third largest moon in the solar system. It is primarily made of rock and ice and has a heavily cratered surface.

Io: Io is a moon of Jupiter and is the fourth largest moon in the solar system. It is the most geologically active body in the solar system, with over 400 active volcanic sites. This activity is caused by tidal heating as a result of the gravitational pull of Jupiter and the other Galilean moons.