Yes, the Nintendo 3DS can connect with the NDS lite, only if the game is compatible for both devices.
3DS games cannot be played on a DS lite. You need a console from the 3DS family - 3DS, 3DS XL, 2DS, New 3DS, New 3DS XL.
yes you can just connect them together
DS lite chargers do not fit a 3DS.
The DS lite is almost exactly the same size as the 3DS.
No, the Nintendo DS lite cannot play 3DS games.
Yes the 3DS and DS lite are the same size
Yes It works on the DS Lite, DSi, and 3DS.
Yes you can. You can also connect DSi to DS and DS Lite to DSi.
No. The DS range goes 'DS', 'DS lite', 'DSi', 'DSi XL', and then there 3DS.