Only one answer per post please. If you have more then one solution, please make a separate post for each.
1024 B in a K = 1024 Bytes in a Kilobyte
10^100:G
G=Googol
365 Days in a Year
366 Days in a Leap Year
299790000 (m/s): Speed of Light in Free Space
93000000 Miles from the Sun
1000 Years in a Millennium
1 Horn on a Unicorn
1066 Battle of Hastings
1 Wheel on a Unicycle
01 811 8055 Swap Shop (blimey that brought back memories!)
1984 by George Orwell
1969 First Man on the Moon
42 the Answer to Life, the Universe & Everything (Hitchikers guide to the Galaxy)
7 Brides for 7 Brothers
2001 a Space Odyssey
10 Years in a Decade
1999 (Tonight I’m Gonna Party Like it’s…)
12 Days of Christmas