Is a bad to put salt on an ice cube and eat it?

Answer 1

Yes. You could get frostbite. The reason: Salt lowers the freezing point of water. As the ice absorbs energy from its surroundings (salt water), the temperature will drop, but instead of stopping at 0°C, when water would start to freeze, the salt water will continue to drop below 0°C in temperature, because it's not at its freezing point, yet.