Here's a mathematical puzzle to puzzle you. I picked this from www.QuickerMaths.com, where you can get many other similar solved puzzles. If you crack this your sense of time is good
Try it out -
Mr. Moody grumbles about bad time-keeping of trains from morning till night!
On one particular morning he was quite justified.
His train left on time for the one hour journey, to Clarksville, and it arrived 5 minutes late.
However, Mr. Moody 's watch showed it to be 3 minutes early, so he adjusted his watch by putting it forward 3 minutes.
His watch kept time during the day, and on the return journey in the evening the train started on time, according to his watch, and arrived on time, according to the station clock.
If the train travelled 25 percent faster on the return journey than it did on the morning journey, was the station clock fast or slow, and by how much?