Why do people get fooled by such cheap schemes?

Mother asked us why we had done that.

Why don't you come along with us to the party?

Why don't you make up for the lost time?

Why do yields increase with herbicide-resistant varieties?

Why is it that only England succeeded in abridging the King's power?

The Aegis collision - why couldn't it have been avoided?

I wonder why tennis is played in mini-skirts.

Why did she break off her speech?

She is very kind. This is why she is liked by everybody.