Question

I am hot but if you remove first two alphabets then i will become really cold. who am i ?

Answer 1

The Answer is Spice.

Spices are popular for being Hot and when you remove two alphabets from the beginning then you get ICE which is very cold

Answer 2

The perfect word which suits this description is "SPICE".

Spices are usually added to food to impart extra flavour to them. Food items are considered 'hot' when they are spicy. A common example of this is chillies, which we refer to as 'red hot'. 

On the other hand, if we remove the first two alphabets from the word 'SPICE', we get the word 'Ice' which we all know is a solid form of water. We usually add ice to drinks mainly due to the reason that they are cold and impart coldness to the drink.

Thus, the answer you are looking for is Spice.