I am stuck on the so called easy puzzles. Easy 2# Under the sea. I have put the pipe on top, Mel goes through it, drops the the is sent up into the air by the anti gravity pad but cannot get ant further , I have placed theplank in various places but am stuck.

From this walkthrough - Attach a LARGE PIPE to the right of the curved pipe and stretch it so it will make Mel fall to the lower part of the screen. Put an Anti-Gravity Pad underneath the PIPE WALL that's serving as a "barrier" for Mel. Place an INCLINE far above it. You may have to do some moving of the Incline or Anti-Gravity Pad to get them to work.