Mint Gum has metanol in it which is like a cooling agent and it tricks your nerves into thinking its something cold like an ice cube in your mouth. And then you drink the water, and your brain thinks its extra cold and it just feels like you swallowed alot of ice.
The answer is NH!! Hope you got it right
Brushing a patients hair and teeth
The inequlity symbol is = that but maybe u should have put that in math