Numberblocks: The Forties

40, 45, 49: Official
41: Unknown (later edit)
42: DID NOT APPEAR! Unlocks the secrets of skating. (A pun on 'secret of life', changed as a multiple of 14)
43: Radiation
44: 4x football
46: Happy, deals with genetics
47: Noble metals
48: Greek teacher (other than the Ender Sigma)

Numberblocks:Forties