<h2>The Puzzle Itself</h2>

-When Nom the gnome went to build his new a~~ir~~plane “Little Wing”, he

+When Nom the gnome went to build his new aeroplane “Little Wing”, he

ran into a funny situation when he wanted to attach the wing to the body

Based on hint #1, we can tell that the screw needing the blue screwdriver and

the final screw were either 4cm and 6cm long respectively or 6cm and 8cm

respectively, as no other allocations fulfil the hint. According to hint #2

-we know that the 6cm long screw was either 3rd or 4th. If the 6cm screw was 4rd

-then, then the 4th screw must be 8cm (in accordance to hint #1). However,

+we know that the 6cm long screw was either 3rd or 4th. If the 6cm screw was 3rd

+, then the 4th screw must be 8cm (in accordance to hint #1). However,

then the 3rd screw must be the one needing the blue screwdriver which is

impossible according to hint #2, which means it must be at 1st or 2nd.

Therefore, the 6cm screw was the 4th screw and the blue screwdriver was used

According to hint #5 the triangular screw preceded the 2cm screw, so it must

have been the 1st screw. Since the 4th screw is not hexagonal screw, the

-hexagonal one must therfore be the 3rd screw, and the 4th screw must be the

+hexagonal one must therefore be the 3rd screw, and the 4th screw must be the

square screw. Thus, we have: