Colors, Shapes and Numbers

I have been remiss in keeping track of Swe-cha's progress so I'll start making an effort these days. It's so much easier to see how much he knows now because he does respond to questions these days already.

Colors
He can identify when asked "what color ?" while pointing to objects:
Green - (eem)
Blue - (oooo)
Yellow - (e-ow)
Red - (ed)
White - (ite)
Black - (ack)
Orange - (oich)
Purple - (o-oy)
I've heard him say Brown (awn) a few times before but it was always after he is prompted by the iPad. I will look for a brown object one of these days so I can ask.
Brown - (awn) Confirmed na, he knows brown.

Numbers
He can count from 1 to 20, recognizes digits. He used to call 0 a "ten" but he's starting to identify it as "zero" every now and then. He probably learned it from school because it surely did not come from me.

He would put two digits together and say the number - say 1 and 2 and say twelve. He would sometimes interchange the sequence of the numbers - 2 and 1 - and still say twelve. I'm told by his teachers that this is okay (I asked if this was an indication of dyslexia, haha - paranoid, no ?).

I can also hold up my fingers and say "how many" ? and he'd tell me the number of fingers I have up.

Shapes
He can identify circle, diamond, heart, rectangle, square and triangle.
Edit: he also knows oval :)

How old are you ? 
He will answer 3 (eee) and hold out 3 fingers. Sometimes, he would tease me and say 4 or 5 while holding up the appropriate number of fingers but he will immediately fall down while giggling even before I react and say "you silly boy" - obviously, nanloloko. :-)

Chim-chiu
I have also successfully taught him how to kiss an elder's hand. Katuwa, he learned this so fast, a few tries lang and he would do it when prompted na.