Haiti cheri pi bel peyi pase ou nanpwen

Awwww.... nostalji! Mwen sonje peyi'm :)
If you're looking for the lyrics, you should be able to google this.
This version, from my personal creation, also has the melody "ti fi ki pa konn lave pase chita kay manman w"
Good times!

 

Ayiti cheri, pi bèl peyi pase ou, nanpwen
Haiti darling, a country more beautiful than you, there's none

See link for Nanpwen
Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

kijan sa tradwi: sa se zafe ki gade'w:

Sa se zafe ki gade'w.
or 
Zafè k gade w.
That's your business.
That's your own affair.
Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

Can you tell me how to spell the town of Pacas? We are going to the school in that place and need to find a contact.

Could it be CASSE (nan Casse, Mòn Kase, Morne Casse)
see google coordinates:
Nan Casse
Mòn kase

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

dan la vi tout bagay gen le yo

Wi se vre. Ou pa manti.
Nan lavi sa, tout bagay gen lè yo.  Salomon di sa pi byen: "Gen yon tan pou chak bagay... yon tan pou viv, yon tan pou mouri; yon tan pou simen, yon tan pou rekòlte; ..." Yon tan pou Ayiti kagou, e yon tan pou l reviv finalman :)
Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

we are here

We are here (we are present)
Nou la.

We are here (we made it, we have arrived)
Nou rive.
Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

kijan mwen ka di sa an angle: sa ou fe mwen an se pa bagay moun fe moun.

Sa     | ou    |  fe  | mwen  | an  |  se  | pa  |  bagay  | moun   |   fe |   moun.
What |  you  | do   | me      |  the |  is   |  not |   thing    | people  | do  |   people
What you did to me is not a thing people do to people.
What you did to me is inhumane. 
Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

Demen pa pou ou machè

Se pa betiz non. Demen pa pou okenn moun.  Ayè pase deja, se jodi a ki pou ou.
Konfesyon mwen sèke mwen pa janm viv nan moman prezan.  Mwen toujou ap tann yon demen miyò ki pa janm vini .... sigh!
Dèzojoudui, sa pral chanje.  M'pral pran chak jou ki vini kòm dènye jou :-\
Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

poukisa ou renmen manje mango ?

☺Paske li dous enpi ou ka fè tòtòt avè l.
Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

"Cholera has killed at least 7,759 people in Haiti since the outbreak started in October 2010, likely brought to the country by a unit of U.N. peacekeepers from Nepal. More than 420 have died in the Dominican Republic, which shares the island of Hispaniola with Haiti." Read more

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

Help! My friend is due to give birth and I will be translating for her at the doctor! How do you ask "Are you having contractions? Did your water break?

Oh man, you got your hands full.
You should bring another Creole speaking friend with you just in case the situation requires more than you can handle :)
Are you having contractions?
Eske ou gen tranche?

more importantly,
How far apart are the contractions?
Chak konbyen minit tranche yo vini?

Did your water break?
Eske w kase lèzo deja?

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

How do you say "Are you nauseous?"

Are you nauseous?
Are you feeling queasy?
Eske ou gen kè plen?
Eske ou gen noze?
Eske ou gen kè tounen?
Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

how do you say have a good trip?

Fè bon vwayaj.
Pase bon vwayaj

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

why do people believe that you should never walk around with one shoe, or you calling one of your parent to the grave?

It's just superstition, and I don't have an explanation for that.
I believe it's the same as walking on your knees, sharpening both side of a pencil, opening an umbrella inside a house, walking past under someone's arms, they don't necessarily have an explanation.

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

pita pi tris in English please

pita pi tris is what people say when they predict that things are not going to go well.

Mwen ta konseye w pou pa fè twòp gaspiyay e eseye ekonomize lajan w, paske pita pi tris.
I would advise you not to be wasteful and to try to save your money, because things won't get better.
Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words

What's a titato exam in Creole? Like "yon egzamen titato"

You mean tic tac toe?
They probably referring to a multiple choice exam :)
 Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words