Why is a river so rich ?

Forwards I am heavy, backward I am not. What am I?

Which country gets ill every time?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

What does this rebus riddle means ?

What runs around the whole yard without moving?

Which is the rope you never skip with?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

What jumps when it walks and sits when it stands?