Here are a few Nepali Myths that I am aware of. Lets discuss if they are actually myths or reality.
If you know more myths, please share.

 They are really not myths, they are our cultural practises.

This was a fun read! #12, is this true? People consume cow's urine? :O

#18, you probably meant eyeliner= gaajal and not mascara. Sorry, being a girl I couldn't help myself from correcting it :D

# 4 is the funniest I think!

Thanks:)

#25 ghokanti biddha dhawanti kheti it's form sanskrit so if there is no way to practice that's why ghoknu nai uttam hune chha tyasaile geeta puran bahun harule kitab naherei kina sabai prawachan garna sakchhan ki kaso!!!!!!!!!!!

 Its kind of funny to see how you are interpreting different practices. Good job on putting together but the reasons are not.  Our culture is different than the culture we see here so if you are trying to make the sense out of it by the comparison method, it wont work. 
  

If I tell you 80% of those myths (according to you) arent actually myths but scientific and practical life tips then what would you say??? Let me begin with the funniest one, if you touch someones neck in nepal and won't blow your hand then I'm damn sure you will eat em all(whatever was there in the other persons neck) in your next meal, you won't enjoy that, will you? and about cow dung and urine being sacred, there are 20000000 articles in google, select any and go through it.. I can interpret some others too upon request

First off, they sound like Superstitious rituals more than myths.
Second, how would you confirm or bust a myth such as the wife should wear white when hubby dies? Most of your "myths" are in that category so I am not sure what your question is.
Nice compilation though.

And one other thing, if you feel proud while saying you are from a Culturally rich background, you gotta leave these things alone coz we have seen enough in the name change, haven't we??

 My perspective in all these (I call them superstitions, you may call them tradition, I am not going to argue), my friend, is they are like Everest.

You can choose not climb them.  But if you climb them, you can have no better reason than just that " because it is there".

I for one choose to be rationalist.  I believe in God (thought I have to admit sometimes I waver).  I believe God gave me the power to think.  If I do not use that power and follow these superstitions blindly, I am not obeying God's wishes.  But I digress.

As I said, I for one choose to be rationalist.  I look at these customs and traditions (am being nice here, ahem) and ask myself why.  If I can come up with an acceptable answer to myself, then I follow, otherwise, to hell with it.

For example, I just don't believe that menstruating women are impure and cannot touch any holy items.  I think that is total bulls#it perpetrated by some misogynist pundit a long time ago.  That is not in my basket of acceptable customs.

Another example, putting on tika during Dashain.  There is no logical connection on having red or white clump of rice on your forehead with good things coming to your life.  BUT. But, there is more to this act than the shallow analysis.  This is an act of solidarity, act of love, act of generosity.  So this is in my basket of acceptable customs.

You might not agree with my rationale.  And you have the right not to. I respect that.

Sounds interesting.
As "sna" said, most of them has valid reason. I am not sure if the reasons are valid.
like for #1 , basically things that can trigger your bp are prohibited ( though not all triggers )which includes salt.

Here is what Ihave to say:

Significance of prohibitions during period::; Normally a mother never has a day off, she is available  to attend to her family 24 hours a day every day. So the custom arose to give the women a holiday of three to four days a month in which they could rest and recoup their energy and be served hand and foot!.... And we all know about the secretion of blood, pus, vomit, faeces, urine, sperm and what not, which is defiling

Being fat is a sign of being healthy::: when the whole nation is starving in the mean time if a person can keep up with his weight than you better consider him a healthy guy

here is another one:

1. if a black cat crosses your path, you should not continue on or else something bad is going to happen to you.

I’d like to comment on the following by Khumbule:

Cow urine/dung is very pure and is good for consumption. (Way to fool people to get sick, like Ramadev fooled almost all in KTM)
Cow urine has some medicinal property, please research. Nobody says you have to eat dung too, dung is considered pure and used to coat the floors. Dung is one of the most unique material and probably the only “excretory” material that has antibiotic properties. Now, how did Ramdev fooled all in KTM? Please elaborate your answer or take it back.


Putting oil in baby's ears is good for his/her hearing. (Proven truth)
Proven, really? A purified form of oil might be good but since oil can attract any contamination easily- it is not advised to do so.

Memorizing is the best way to get education. (no doubt)
Says who? May be the best way to get grades in bio/chem/sanskrit class but that’s it.

By the way it's baloney, not belony.

 MYTH 26: Hanging a small shoe or some lemon and green pepper at the front of your vehicle (usually buses) will help you avoid accident (or something like that).

Hot and spicy items should be avoided during common cold- Actually we need vitamin C to recover early from common cold. And red chilli has it.
About the first fact,  salt is considered to be a big trigger for high blood pressure. The chances of getting stroke during big stress is high coz of high BP. that is one of the reason we are supposed to avoid salt.

it is bad omen to sneeze when someone is leaving house- this is considered when some one is travelling long distance. Possible reason could be- common cold is airborne. It can transfer with the droplets when you sneeze. And definitely you dont wanna get high fever and heahache on the middle of your journey.

never heard of the last one, "memorizig is the best way" but what I heard was "ghokantey bidhya ra dhawantey kheti" bata kehi advantage hudaina .

Seeing empty vessels is not a good sign- it can possibly indicate that the village is suffering from scarcity of water /food. In that case, instead of leaving house, you may wanna go out to search water. (just random guess)

 OK.. So you are saying salt may cause high blood pressure.. and that is fine. But what if you have extremely low blood pressure? Can you eat salt then. The answer is NO. Even a two year old can't eat salt. And its not just salt.. there are lots of stuff that you cant eat.

 Salt do not raise BR in a normal person. You can have as much salt as you like if you havent been diagnosed with Hypertension, but if your diagnosed its advised to limit the salt intake.