Whats the rule that makes "please" pronounced the same as "pleas"?
14.06.2025 18:20

You'll usually find your answer there.
What's (not “whats”) the rule?
Back in the day (circa 1300), it was written <plesen>.
Please is an anglicization of the French word plaisir.
While you may reasonably ask why words are spelled the way they're spelled, it makes no sense to ask why they're pronounced the way they're pronounced.
Pleas is spelled <pleas> because it's the plural of pleas.
What is the sum of X+XX+XXX+XXXX?
Whence the <ea> I cannot say but some other words that were spelled <ai> in French are spelled <ea> in English: aise → ease, graisse → grease, fait → feat.
There's no rule.
If you're curious about why a word is spelled the way it's spelled, your first recourse should be etymonline dot com.
Have you ever lied to your family? What were the circumstances?
Words are pronounced the way that they're pronounced.