In a Staff room Chemistry and History teachers were in a tough competition
. . . History Teacher: “I will slay you with Tipu Sultan’s Sword…!” . . . Chemistry Teacher: “I will dissolve you in concentrated HCl…!” . . . When it becomes too tough for the Maths Teacher to bear… . . . He shouts: “Shut up both of you…! I will put both of you in the bracket and multiply with zero..!!!”