Today's PUZZLE CLASSIC OF THE DAY

It is possible to draw this shape without: a) taking your pencil off the paper; and b) going over any segment twice. Staring from the top left corner and not counting it as a turn, how many turns will be there in order to get back to the starting point?

How many squares can you find in this shape? Select a square and click the "Count" button.

Of 9 identical weights, 8 are the same, while one (a counterfeit) is lighter than the others. The counterfeit can be found in two weighings on a plain balance with no markings on it. How many weights are put on both pans during the 1st weighing, and how many are put during the 2nd weighing?

At a secret meeting, everyone shakes hands exactly once with every other person present. Altogether 45 handshakes have been made. How many people attended the meeting?

Cut this figure into 2 congruent parts (identical in area and shape), so that when re-arranged they can produce a perfect square.

Use four 9s to make 100. What two arithmetic operations should be used to achieve the result?

There are 50 coins in a bag with a total value of $1. What are those coins?

Can you find the SMALLEST positive number that is divisible by 15 that consists ONLY of ones and zeroes (e.g. 10, 11, 100, etc.)? Click the tiles for solving.

Place 3 circles on the rounded starry sky so that each star is separated. Circles are scaled up when dragged.

Cut the 5x6 rectangle into 6 identical parts (can be mirrored). One cell for each part is already revealed. Select a color from those cells.

One sunny Saturday Nadin started bicycling from her family house in New Jersey to the oceanside, keeping a steady speed of 6 miles per hour. Two hours later her husband Barton followed on his own bike, keeping the steady speed of 8 mph. By the time Barton caught up with Nadin, they both successfully reached the beach. How long was the trip in miles?

One morning a hiker started hiking up a mountain trail at 8am. He maintained a steady pace of 1.5 miles per hour (mph). When he reached the summit, he spent 12h meditating. He then walked down the same path at a steady pace of 4.5 mph, and reached the starting point at noon the next day. How long was the trail?