Body Slam isn't a TM in the game. Some Pokemon can learn the move naturally through level up, though.
There is not a tm for bite or crunch.
you can get it in seafloor cavern
at the game corner
In the Safari Zone
It is located at Meteor Falls
There is not a tm for bite or crunch.
Thunderbolt
Yes, Tm's in Pokemon Omega Ruby and Alpha Sapphire are re-useable
Double Team
Trade.
you can get it in seafloor cavern
25
at the game corner
In the Safari Zone
double team
Location is Route 115
It is located at Meteor Falls