Can ever photons can have a charge? If not why?

Can we ever construct an organ pipe whose frequency does not change with temperature? If no why? If yes, under what condition?

Can we charge a body to have a charge Q = 15e/2

Can a law ever be final?

Can a law ever be final?

An ebonite rod held in hand can be charged by rubbing with flannel but a copper rod cannot be charged like this.why?