Who taught you how to swim, and at what age?
My dad tried to teach me but I still suck at it. xD I forgot what age.

Who taught you how to ride a bike, and at what age?
My older cousin taught me when I was 5-6ish~

Who taught you how to read, and at what age?
School! At whatever age they do this stuff I was learning Chinese characters since I was 2-3 though. It's a pity I forgot them all. xD