brain teasers

1.how much dirt is in a hole 5 feet deep, 9 feet wide, and 3 feet in length? 2. a cowboy rides into town on his horse, he gets there Friday, he stayed there for 3 days, and left on Friday, how did he do it? 3. how can someone pass the finish line first, when the other passed it after, n hav a faster time?(I made this myself! )
ok so thats all i know, msg me with ur awnser n ill say if ur right or not, or if u hav more 4 me plz mm them 2 me, thanks!