Chol Hamoed

I discovered buried treasure on Chol Hamoed, and I’m afraid that if I wait until after Yom Tov someone else might find it. May I dig it up on Chol Hamoed?

I heard that Besamim is NOT used for Havdala on Motzei Shabat Chol Hamoed, is this true?

I do not understand the Rabbinic prohibition of not shaving during Chol HaMoed.

Is doing the laundry completely forbidden on Chol Hamoed?

Does one were Tefillin on Chol Hamoed?

Why did Rabbi Akiva’s 24,000 students die precisely during these days?