Yes.
It is only possible to get Weedle in Pokemon Yellow by either trading it from Pokemon Red or Blue versions, or use the Mew Glitch and battle certain trainers.
no
No.
yes
These games can fight with each other: Pokemon stadium 1 and 2 with red, blue, yellow, gold, silver and crystal. Red, blue and yellow can battle each other and gold, silver and crystal. Ruby, sapphire and emerald can battle with each other and firered, leafgreen, Pokemon colosseum and Pokemon xd gale of darkness. Diamond, Pearl and Platinum can battle each other and Heartgold and Soulsilver. The games that can battle each other can also trade with each other as well.
In Pokemon Blue, Red, Yellow, Silver, Gold, and Crystal, the place to trade and battle friends is to the right of Nurse Joy inside every Pokemon Center. In Pokemon Ruby, Sapphire, and Emerald, the place to trade and battle is located upstairs.
Noctowl doesnt exist in Pokemon yellow, blue, or red
Just battle with a friend that has Red, Blue, Yellow, FireRed or LeafGreen. or if you have the game, migrate from it.
using it in battle heals your pokemon from confusion.
try not sucking at Pokemon
The Poke Flute wakes up sleeping Pokemon, and was a key item in Pokemon Red, Blue, Yellow, FireRed, and LeafGreen. It could be used in or out of battle. The Blue Flute, however, as far as I can tell, only wakes up one Pokemon. I hope this helped.
you trade it from Pokemon red/blue or yellow