Rainbow.
Rainbow.
Odd.
Bat-minton.
A shadow.
A bowling ball.
One came in at 2:00 AM. One came in at 2:00 PM.
Use Roman Numerals (numbers):
49 = XXXXIX 1= I
Remove the I from XXXXIX gives you XXXXX (50)
XXXXIX (29) - I (1) = XXXXX (50)
A window.
Potato.
A coffin.
Because she wanted to play by ear
The room is actually an elevator. When she gets inside to go down to her room, the elevator accelerates downward, making her weight temporarily lower.