Today's PUZZLE CLASSIC OF THE DAY

How many triangles are in this figure? Select a triangle and click the "Count" button.

How many triangles are in this figure? Select a triangle and click the "Count" button.

Ernie and Irene are getting ready for a friendly water balloon fight when Ernie protests "Wait, it's not fair, you have three times as many balloons as I do!" Ernie, being a good sport, gives Irene 10 of his balloons. "It's still not fair" Irene says, "you still have twice as many balloons as I do!" How many balloons each kid had initially?

A man lights 2 candles for a romantic candlelight dinner with his wife. The candles are of equal length; the thicker one is set to last for 6h, the thin one - for 3h. At the end of the dinner the thick candle is twice as long as the thin one. How long did the dinner last?

What is the smallest whole number after 95,555 with four identical digits?

It belongs to you, but others use it more than you do. What is it?

Cut this figure into 3 congruent parts (identical in area and shape, though they can be mirrored).

How many triangles are in this figure? Select a triangle and click the "Count" button.

In a giant 10 x 10 x 10 cube, made up of 1000 smaller 1 x 1 x 1 cubes, how many of the smaller cubes are at least partially visible? Recreate the number with a simple formula.

Each letter represents a different digit. Replace the letters with the respective digits to restore a valid expression.

A jeweler heads down to the market with 59 jewels, all packed in small bags, to sell. The rubies are bigger and fit 4 per bag; the sapphires are smaller and fit 9 per bag. All the bags are filled completely with either rubies or sapphires. How many of the jewels are rubies?

You have a wet sponge that weighs 200g, which is 99% water by weight. If you squeeze some of the water out of the sponge so that it's now only 98% water by weight, what would the wet sponge now weigh?