Puzzles

You have two sand timers showing two minutes and three minutes, respectively. Use both the sand timers (at one time or one after another or any other combination) and measure a time of six minutes.

1. Start the three-minute sand timer.

2. Once the three-minute sand timer ends, turn it upside down instantly and start the two-minute sand timer simultaneously. Now, three minutes are over.

3. Once the two-minute sand timer ends, turn the three-minute sand time upside down. ...