sOmE tHiNgS yOu CaN't Do

..have it both ways
..have your cake and eat it ????
..get blood out of a stone
..make and omelette without breaking eggs
..make a silk purse out of a sow's ear
..run with the hare and hunt with the hounds
..teach an old dog new tricks
..tell a book by its cover
..shake hands with a clenched fist
..tell which way the train went , by looking at the track
..win arguments by interrupting speakers
..have a rainbow without rain
..pick up two melons with one hand
..fool all of the people all of the time
..sip soup with a knife
..see the sky through a bamboo tube
..measure the sea with a shell
..cheat an honest man
..catch a cub without going into the tiger's den