It is roughly 65 miles / 105 kilometers in straight-line distance.
48 miles
The distance from the Dead Sea to the Sea of Galilee is 104 miles or 167 kilometers. The Sea of Galilee is Israel's largest freshwater lake.
about 40 miles
The Mediterranean and the Red Sea border Israel
The Mediterranean Sea does.
Capernaum is on the west shore of the Sea of Galilee
Jerusalem is a city. The Galilee is an area in Northern Israel primarily formed by two mountain ranges and bounded by the Mediterranean Sea to the West and the Sea of Galilee to the east. The Galilee is over 100Km (or more depending where in the Galilee) north of Jerusalem Galilee and Jerusalem are both in Israel.
Mainly the Mediterranean Sea, but also the Sea of Galilee, the Dead Sea and The Gulf of Aqaba.
Partial answer: The salinity of the dead sea is ~31.5% by weight while the salinity of the Mediterranean is ~3.5%
Nazareth to the Sea of Galilee is 30.0 km.
Sea of Galilee, also known as the Kinneret, which touches the Golan Heights. It is worth noting that the Sea of Galilee is actually a freshwater lake (just like the Caspian Sea or Aral Sea). The closest saltwater sea to the Golan Heights is the Mediterranean Sea at approximately 30 miles or 50 kilometers distance from the Golan Heights.
Mostly the Sea of Galilee, but some desalinization plants do provide drinking water off the Mediterranean sea and the Red sea
difference is the dead sea is very salty caused mainly by the Jordan river