10 things we didn't know before the 50th week of 2009

1. The Queen travels to Sandringham by scheduled train each Christmas.
2. The Moon has the coldest place in the Solar System measured by a spacecraft.
3. About 3.8 million cheques were written in the UK every day last year.
4. Australian stingless bees immobilise intruding beetles by mummifying them in resin, wax and mud.
5. The Royal Mail's missed parcel cards are also known as "739" cards.
6. 748 million burgers are sold in the UK annually.
7. Women's touch is more sensitive than men's.
8. The Na'vi language spoken in James Cameron's new film Avatar took four years to write and develop.
9. Female spiders eat their mates despite them being nutritionally poor.
10. Milton Keynes central railway station appeared as a UN building in Superman IV.

(Borrowed from the BBC)