Let's answer a few of them... some seriously and some more funny...

1. Electronic Currency and Electronic Transactions. Makes sense doesn't it?
2. The dog, doh!!!
3. There is no light without darkness and no darkness without light... so it's safe to assume that the darkness has the same speed as the light. That is ONLY if you do not consider the lack of light - darkness.
4. The materials used for the BB are way too heavy to create a airplane that can actually fly. That's why aluminium is used.
5. http://en.wikipedia.org/wiki/Copyright_symbol
6. of course... it's just that you will not see any tears...
7. Maybe they have been doing the same thing... therefore the expression.
8. I have no clue... and i don't really care... but i'm sure there is a reason... same reason for the keyboard layout of a notebook.
9. Doubt that...
10. No... but you can get rounded....
11. http://en.wikipedia.org/wiki/Okay (i love Wiki...)
12. Cuz they are not stupid like humans...
13. My guess is the Chicken...
14. YES... amnesia represents some missing links between the neurons... once those links are repaired (synapses) the information stored in the neurons can be accessed again.
15. WHERE IS NUMBER 15?????
16. If it has air in it then YES!
17. Building can be a verb or a noun... The construction of a building (eg: process through which the building is assembled) is a verb. The building as a finished construction (the process is already completed) is a noun. Same word, 2 different meanings >>> HOMONYM
18. IF no other source for sound exists then yes (by that i mean you fly at the speed of sound but there is no other sound produced by the friction...). however that is a theoretical impossibility.
19. Absolutely NOTHING else... the headlights will illuminate your path... or mothership... w/e
20. The TV assembly is called a set. By assembly i mean all the parts and components (audio/video/electronic)
21. I don't think anyone cares about that for now... but they DO own that land at least a few kilometers underground UNLESS someone else (eg: telecom companies, water companies, train tracks) owns it.
22. You can go fast legally... not on the public roads... but you can build your own road and drive on it as fast as you car can...

Enjoy...