OK, first of all, LIST TIME! You need:
OK, now you need to fill up the Bucket (s) with water and then empty it (them) into the Cauldron. After you've done that take the Glass Bottles and fill all of them up with water. Then walk over to the Brewing Stand, and put all three bottles on it.
OK, I don't actually know how to MAKE the Clear potion I just know how to start it up. SORRY!
Redstone makes the potion last longer when you drink it.
Throwing potions in minecraft are called splash potions. To make any splash potions you will need to add gunpowder to it by putting it in the brewing stand, like any other ingredient for the potion.
beacons are used in minecraft for getting some potions on you and knowing where your home is on single player
Yea
Primary and Secondary Potions.
Yes
To make potions last longer, you add redstone to them.
There are many potions you can make but you need many different materials to do so first you need to make awkward potions and then you add the fizz like fermented spider eyes magma cream and you can make potions of fire resistance potions of speed potions of regeneration potions of instant health which instantly heal you also instant damage and much more check the wiki by typing minecraft wiki in on google it's a very useful site that's about what you can make
For storing water for potions they can also be just decorations.
Ghast tears are used to make many potions.
When you kill a Ghast you often get a "Ghast Tear" which you use to make potions.
Not including potions, there are 300 items and blocks if it isn't modded.