You surely can , unless the tooth was badly decayed before placing Zirconium crown and was treated with a screw placement post root canal treatment. In case the screw was placed, any excessive force in a particular angle can cause fracture of the tooth and it will have to go for subsequent extraction. So although the zirconium crown doesn’t break you have to be cautious to prevent the tooth from fracturing. If there is no screw , you need not worry. You can eat all the things you mentioned.

Yes surely

You can definitely bite all the above food stuff