A mother had three daughters and on their wedding, she tells to each one of them to write back about their marriage life.

So the first one gets married..

The second day the letter arrives with a single message.. 'WILLS' Mother got confused and finally looks the ad, and it says..

MADE FOR EACH OTHER..

Mother is happy

The same way the second one gets married.

After a week the message arrives .... 'FILTER KINGS' As usual mother looks into the ad, and it says... LIFE SIZE KING SIZE !!

Mother is happy

But after the third one's wedding, only after 4 weeks the message arrives and it says 'BRITISH AIRWAYS' As usual mother looks into the ad, and this time she faints.

THE AD : TWO TIMES A DAY, FOUR TIMES A WEEK, BOTH WAYS.