Age, weight, height

AGE
How old are you? - Berapa umur anda? (berapa = how many (when dealing with numbers), umur = age)
How old is your mother? - Berapa umur ibu anda?

I am 20 years old - Umur saya dua puluh tahun. (dua puluh = 20, tahun = yr)
She/he is 53 years old - Umurnya lima puluh tiga tahun. (umur = his/her age, lima puluh tiga = 53)
My grandfather is 70 years old - Umur kakak saya tujuh puluh tahun. (literally: age grandfather mine seventy yrs)

WEIGHT
Weight = berat badan (short form = berat)
kilograms = kilogram, kg

How much do you weigh? = Berapa berat anda?
How much does your older brother weigh? = Berapa berat kakek laki-laki anda?

I weigh 50 kilograms = Berat saya lima puluh kilogram.
My little sister weighs 35 kilograms = Berat adik perempuan tiga puluh lima kg.
S/He weighs 69 kg = Beratnya enam puluh sembilan kg.

HEIGHT
Height = tinggi badan (short form = tinggi)
Centimetres = sentimeter, sm

How tall are you? = Berapa tinggi anda?
How tall is your mother? = Berapa tinggi ibu anda?

I am 152cm tall = Tinggi saya seratus lima puluh sentimeter.
My mother is 148cm tall = Tinggi ibu saya seratus empat puluh delapan sm.
S/he is 164cm tall = Tingginya seratus enam puluh empat sm.