Why do the birds fly in a formation early morning and later in the evening?
How do they find their homes? Where are their homes?
Why do crying babies smile when they see their Moms? Then why these same babies, when they grow up, say “Ohhhhh, Mom!!! Comeon!!” when they see their mummies?
Why do ladies crossing the road turn their backs in the direction of traffic? ( I am not joking watch for yourself)
Why would the toll lane you enter will always be the slowest?
Why does buttered toast fall on the buttered side?
How does the mother cat know how many kittens are to be shifted?
Why is British pound costlier than US $? How Australian $ and US $ are on par?
Why black box on a plane NOT black?
Why US Green card is Pink?
So many such questions come to mind, please suggest your own list.