Because she grew another foot.
Tulips.
They can't lego of their childhood. Tell some more Lego puns, here!
Because he four feet.
OOOOOWWWWLLLL....
The Earth's crust is on the outside.
If she's only wearing one sock. (This joke brought to you courtesy the homeless guy outside my local 7-11.) Edit: tweaked the punchline.
Scaaaaaarrves
Gee, you knit