On the number 40

40 - days and nights of rain for Noah
40 - days on the mountain for Moses
40 - days of spying the
40 - years in the desert for Israel
40 - days on the run to Horeb for Elijah
40 - days in the desert for Jesus

40 - as many fingers and toes as you'd normally expect on two people.
40 - as many noses as Tycho Brahe and 40 of his best friends.
40 - the number life begins at.  Or so they say.

40 - the atomic number of Zirconium
40 - one more than the recommended number of lashes
40 - not quite enough winks

40 - with WD, handy for unsticking stuff
40 - the number of Thieves
40 - What went after "UB" in the Bedfordshire dole offices in the 1980s
40 - An M that takes you from London to Oxford.
40 - The atomic weight of a radioactive isotope of Potassium