Brain Teasers and Puzzles 

Workings

Hint
How many watch minutes pass in a real hour?

Answer
12:11pm.

Reasoning
The watch now shows 10:39am, so we know that 10 x 60 + 39 = 639 watch minutes have passed.

Since the watch is losing 6 minutes every hour, for every real hour that has passed, the watch will show 54 minutes.

So, 639 ÷ 54 ≈ 11.8333 real hours have passed.

This equals 710 minutes, which is 11 hours and 50 minutes = 11:50am.

The watch stopped 21 minutes ago, therefore the time must now be 12:11pm.

Workings

Hint
Do the words make sense when read another way?

Answer
Nwod.

Opposites reversed:
   big and small
   open and closed
   up and down.

Workings

Hint
The bottom word begins with M.

Answer

Workings

Hint
The answer is something to do with time.

Answer
The order is based on the length of day of the planet in Earth hours and days.

Jupiter has the shortest day (≈ 9 Earth hours), and Venus has the longest day (≈ 243 Earth days).