Català
Good morning - Bon dia
Good evening - Bona nit
Bon Appetite - Bon profit
How are you? - Com estàs?
What's the time? - Quina hora és?
Why did czech president Vaclav Klaus steal the pen? - Perquè el president Vaclav Klaus va robar el bolígraf?

Mornin'
Evenin'
Dig in
Howdy
Do you know what time it is?
A politician stole something. Shocking.

Portuguese

Good morning - Bom dia

Good evening - Boa tarde

Bon Appetite - Bom apetite

What's the time? - Que horas são?

Why did czech president Vaclav Klaus steal the pen? - Por que é que o president checo Vaclav Klaus roubou a caneta?

Asturian.
Good morning - Bos días.
Good evening - Buenes tardes.
Bon Appetite - Qu'aproveche.
How are you? - ¿Cómo tas?
What's the time? - ¿Qu'hora ye?
Why did czech president Vaclav Klaus steal the pen? - ¿Por qué'l presidente Vaclav Klaus robó el llapiceru?

Farsi
Good morning - Sobh Bekheir (صبح بخیر)
Good evening - Asr Bekheir (عصر بخیر)
Bon Appetite - Nushe Jan (نوشه جان)
How are you? - Halet chetore? (حالت چطوره؟)
What's the time? - Saat chand ast? (ساعت چند است؟)
Why did czech president Vaclav Klaus steal the pen? - Chera raeis jomhure chek, Vaclav Klaus khodkar ra dozdid? (چرا رئیس جمهور چک، وکلاو کلاس خودکار را دزدید؟)

Napoletano - Dialect of Napoli, an italian city of the south.

Good morning - Bongiorn

Good evening - Bonaser

Bon Appetite - Buon appetit

How are you? - Comm stai? T'appost?

What's the time? - Frà sai chijorè?

Why did czech president Vaclav Klaus steal the pen? - Pcchè o president cec Václav Klaus s'arrubbai a penn?

French
Good morning - Bonjour
Good evening - Bonsoir
Bon appetite - Bon appétit
How are you ? - Comment vas-tu ?
What's the time ? - Quelle heure est-t-il ?
Why did czech president Vaclav Klaus steal the pen ? - Pourquoi est-ce que le président tchèque Vaclav Klaus a-t-il volé le stylo ?

Bore da
Noswaith dda
Bon Archwaeth
Sut wyt ti?
Beth yw'r amser?
Pam oedd llywydd Tsiec Vaclav Klaus cymryd y pen?

Spanish - Argentina.

Good Morning: Buen día.
Good Evening: Buenas noches.
Bon Appetite: Buen Provecho.
How are you?: ¿Cómo estas/andas?
What's the time?: ¿Qué hora es?
Why did czech president Vaclav Klaus steal the pen?: ¿Por qué el presidente Checo Vaclav Klaus robó la lapicera?

In Lithuanian

Good morning - Labas rytas

Good evening - Labas vakaras

Bon Appetite - Gero apetito

How are you? - Kaip laikaisi?

What's the time? - Kiek laiko?

Why did czech president Vaclav Klaus steal the pen? - Kodėl čekų prezidentas Vaclavas Klausas pavogė rašiklį?

Polish

Good morning - Dzień dobry
Good evening - Dobry wieczór
Bon Appetite - Smacznego
How are you? - Jak się masz?
What's the time? - Która godzina?
Why did czech president Vaclav Klaus steal the pen? - Dlaczego czeski prezydent Vaclav Klaus ukradł długopis?

Thai

Good morning - อรุณสวัสดิ์

Good evening - สายัณห์สวัสดิ์

How are you? - เป็นไงบ้าง ?

What's the time? - ตอนนี้กี่โมง ?

Why did czech president Vaclav Klaus steal the pen? - ทำไมประธานาธิบดี Vaclav Klaus ของสาธารณรัฐเช็กขโมยปากกา ?

I think Dutch is still missing, and yes, Afrikaans is rather funny for Ducth people. :P

Good morning - Goedemorgen
Good evening - Goedenavond
Bon Appetite - Eet smakelijk
How are you? - Hoe gaat het (er mee)?
What's the time? - Hoe laat is het?
Why did czech president Vaclav Klaus steal the pen? - Waarom heeft de Tsjechische president Vaclav Klaus de pen gestolen?

Edit, know some Papiamentu as well, don't know if it's written correct though ( I think there are also different ways you can write it):

Good morning - Bon dia
Good evening - Bonnochi
Bon Appetite - Bon appetit
How are you? - Kon ta bai?
What is the time? - Ki ora e ta?
Why did czech president Vaclav Klaus
steal the pen? - Pakíko ta Czech (don't know if it has an own word in papiamentu) presidente Vaclav Klaus horta e pen?

Spanish (Chile)

Good morning - Buenos días
Good evening - Buenas tardes
Bon Appetite - Buen provecho
How are you? - ¿Cómo estás?
What's the time? - ¿Qué hora es?
Why did czech president Vaclav Klaus steal the pen? - ¿Por qué el presidente checo Vaclav Klaus robó el lápiz?

*PS: President Vaclav Klaus steals a pen in my country (Chile) haha

Here is the video: http://www.youtube.com/watch?v=uToMvq3yw2A

Portuguese
Good morning - Bom dia!
Good evening - Boa noite!
Bon Appetite - Bom apetite!
How are you? - Como estas?
What's the time? - Que horas são?
Why did czech president Vaclav Klaus steal the pen? - Porque é que o presidente checo Vaclav Klaus roubou a caneta?

Georgian :)

Good morning - დილა მშვიდობისა - dila mshvidobisa

Good evening - საღამო მშვიდობისა - saghamo mshvidobisa

Bon Appetite - გემრიელად მიირთვი - gemrielad miirtvi

How are you? - როგორ ხარ? - rogor khar?

What's the time? - რომელი საათია? romeli saatia?

Why did czech president Vaclav Klaus steal the pen? - რატომ მოიპარა ჩეხეთის პრეზიდენტმა ვიჩესლავ ლაუსმა კალამი? - ratom
moipara chexetis prezidentma Vaclav Klausma kalami?

Good morning - Buen Día
Good evening - Buenas Tardes
Bon Appetite - Provecho
How are you? - Como estas?
What's the time? - Que Hora es?

Portuguese

Good morning - Bom dia

Good evening - Boa tarde

Bon Appetite - Bom apetite

How are you? - Como estás?

What's the time? - Que horas são?

Why did czech president Vaclav Klaus steal the pen? - Porque é que o presidente checo Vaclav Klaus roubou a caneta?

Castellano (argentino)
Good morning - Buenos días
Good evening - Buenas tardes
Bon Appetite - Buen provecho
How are you? - ¿Cómo estás? / ¿Cómo va? / ¿Cómo andás?
What's the time? - ¿Qué hora es?
Why did czech president Vaclav Klaus steal the pen? - ¿Por qué el presidente checo Vaclav Klaus (se) robó la lapicera/ el lápiz?

College student:

Good morning - Hey.

Good evening - Hey.

Bon Appetite - The cafeteria food sucks.

How are you? - How many papers are you procrastinating on?

What's the time? - How many hours until my thesis is due?

Why did czech president Vaclav Klaus steal the pen? - Man, I wish I could have stolen that pen. That looked like a nice pen.

Good morning - Buna dimineata!

Good evening - Buna ziua!

Bon Appetite - Pofta buna!

How are you? - Ce faci?

What's the time? - Cat e ceasu?

Why did czech president Vaclav Klaus steal the pen? - De ce a furat presedintele ceh Vaclav Klaus pixul? Jita proasta...

That's how we say it in Romania.

Va pup! :*

Hector Salamanca.

Good morning - Ding.

Good evening - Ding Ding.

Bon Appetite - ...

How are you? - Ding?

What's the time? - Ding ding ding ding ding ding ding ding

Why did czech president Vaclav Klaus steal the pen? - Ding ding ding

< Bulgarian - Български >
Good morning - Добро утро
Good evening - Добър вечер
Bon Appetite - Добър апетит
How are you? - Как си?
What's the time? - Колко е часът?

AFRIKAANS
(Scuballama's effort had some mistakes.)

Good morning. - Goeiemôre.

Good evening. - Goeienaand.

Bon Appetite. - Smaaklike ete.

How are you? - Hoe gaan dit (met jou)?

What's the time? - Hoe laat is dit?

Why did Czech president Vaclav Klaus steal the pen? - Waarom/Hoekom het Tjseggiese president Vaclav Klaus die pen gesteel?

Suomi / Finland

Good morning - Hyvää huomenta?

Good evening - Hyvää iltaa?

Bon Appetite - Hyvää ruokahalua

How are you? - Kuinka voitte?

What's the time? - Mitä kello on?

Why did czech president Vaclav Klaus steal the pen? - Miksi Tsekin presidentti Vaclav Klaus varasti kynän?