HA Questions

[Mimispider]

hi there! i am about to start HA breeding and i have a few questions:

1. which parent passes the ability to the child
2. can i breed a HA pokemon (for example squirtle) without my blastoise having its hidden ability?
3. this is not exactly a question, but i have some pokemon without HA abilities, but i DO have a pokemon of the other gender with the ability i want the baby to be. does that mean that i can still breed a HA pokemon?

[Inari]

1. The female
2. No
3. No

[Mimispider]

1. The female
2. No
3. No

thank you for your answer