Which would you say? and are they correct grammatically?<br/><br/>1 Don't eat while playing/Don't play while eating<br/><br/>The playing is longer than the eating??<br/><br/>2 He hates me just as I hate him./just like I hate him.<br/><br/>3 It'll cost you more to fix zipper than the cost of the jacket.<br/><br/>4 He's richer at 24 than me when I was 40.<br/><br/>5 I a little more than tripled my investment. (Is this how you'd say it?)<br/><br/>thank you