or ....
Q - Why did the submarine blush?
A - Because it saw Queen Mary's bottom
Q - When is a door not a door?
A - When it's ajar
Q - What travels at 100mph along the lake bottom?
A - A Motor Pike (pike is a pommie fish for those that don't know !)
Q - What do you get if you cross a Regimental Mascot with a Pigeon?
A - A Military Coo !
.... they get worse
Well Roger, provided you don't want more than 15 crackers (and who would ?!) that should sort you out
Cheers.,