Hello: marhaban مرحباً
How are you? : if you want details, this gets a bit complicated. If you're talking to a singular male, you'd say "kaifa haluka كيف حالكَ" if you're talking to a singular female, you'd say "Kaifa haluki كيف حالكِ" if youre talking to two people, you'd say "kaifa halukuma كيف حالكما" and if youre talking to a group of people, you'd say "Kaifa halukum كيف حالكم" if there were any males, I only females you'd say "kaifa halukunna كيف حالكنَّ"
I'm Peter. Ana Peter
My name is Peter. Ana ismee Peter
I'm 65 years old. 'umri Khamsa wa sittuna 'aman
One: wahid
Two: ithnan OR ithnayn (depends on grammatical rules) (in dialect sometimes pronounced itnein)
Three: thalatha (in dialect sometimes pronounced talata)
Four: araba'a
Five: khamsa
Six: sitta
Seven: sab'a
Eight: thamaniya
Nine: tis'a
Ten: 'ashra (in dialect sometimes pronounced 'ashara)