Rocket game corner prize for 5000coins
You should be able to buy it at Celadon city' department store.
It can't learn it on its own you need to use the TM.
You cant find it in Firered only leafgreen.
While it was possible to find missingno. in Red version, it is not possible to find it in FireRed.
You can't find the Old Sea Chart in FireRed.
You can find Murkrow in the Lost Cave in Pokémon FireRed.
You cannot find Piloswine in the wild on Pokemon FireRed. You can find it's pre-evolved form Swinub in Icefall Cave on Floe Island in the Sevii Islands of Pokemon FireRed.
there is only one master ball that you get in firered
Whirl islands are in the johto region which is not in firered.
You can't catch misdreavous in firered only leafgreen can.
in blizzard mountain
you can't