Can I use my Aquatica ticket on the date of expiration? Example : expires 4-24 , use it on 4-24.

Yes

Yes, you may use your ticket on the date it expires.

Yes. That date is till midnight. Park isn't open till midnight.

Yes you can

If the expiration date is 4-24 it's will still be good on 4-24 because for it to be expired it will be any date after 4-24