What will be the colour of HCl with methyl orange?
Methyl orange (MO), as you know, is an acid-base indicator.

The problem with those is that they do not distinguish between acidic and basic medium, but rather between different pHs. MO has a transition interval of 3.1-4.4, which means it's red below 3.1 and yellow over 4.4. Within this interval it's all about transition colors (red through orange to yellow).

Answering your question: a few drops of HCl would affect water differently. Let's say, you had 1 L of water and you added 3 drops (0.15 mL) of concentrated saturated HCl (~40% w/w). That leads us to  ~0.002 mol of HCl added and to pH lower than 3, so the MO would turn red. If you had diluted solutions, like 0.01M or so, the calculations would tell you the pH would still be higher than 4.4, so the MO would still be yellow.