"How" refers to the way something is done. For example a waiter might ask you "How do you want your eggs ?", and you might reply "Scrambled please". As a second example. the question "How do I turn the computer on ?" might be answered by "Press the red button". Used with an adjective like (long, or big, or fast), "how" can also refer to the extent of something. For example you might ask "How long is that rope ?", to which the answer might be "Six feet". "Why" refers to the reason for doing something. For example you might ask "Why are you going to the supermarket ?" and get the answer "To buy eggs".

Thanks a lot, Sarah. I got the answer.

Hi Javi, good question! In the first sentence (How would you like it?), "how" can mean either "to what degree" or "in which way". For example, if your friend suggests that you go to the park this afternoon for a walk and then asks "How would you like it?" you can answer "I would like it a lot!" or "I would not like to go to the park." If instead your friend is asking you if you want an apple and he offers it to you either whole or cut into pieces and then says "How would you like it?" you can tell him the way you prefer ("I would like the apple whole" or "I would like the apple cut into pieces")... In other words, "in which way." "Why would you like it" asks "For what reason?" If you tell your friend you would like to go to the park and he asks "Why would you like it?" you can answer "I need fresh air!" or "I like to walk in the park" or "I like to see the children playing with their friends." You could name any reason you would like to go to the park. I hope that helps! If you'd like to practice using these sentences, feel free to visit my teacher profile: https://teach.italki.com/teacher/3625837 and we can have a lesson.