Today's PUZZLE CLASSIC OF THE DAY
PREVIOUS 12 DAYS
Parking Lot Conundrum
Which numbered space is the car parked in?
Four Intersecting Squares
How many squares are in this shape?
Biggest Cross-out
Draw a straight line which would cross out a series of cells with the highest total of numbers in them. Start by pressing and dragging from any cell.
Basic Cross Sum
Place digits 1-9 into this simple cross so that the total in the row is the same as in the column. Reach the highest possible sum.
Isosceles Triangle Inside the Square
Each square in the grid measures 1 unit by 1 unit. What is the area of the orange triangle in square units?
A Diesel Ship & a Seaplane
One sunny day a diesel ship leaves on a long voyage. When it is 180 miles from shore, a seaplane, whose speed is ten times that of the ship, is sent to deliver mail. How far from shore does the seaplane catch up with the ship?
Counting Triangles
How many equilateral triangles can you spot on this ancient stone? The big one is counted.
A Chessboard Challenge
How many squares are on a chessboard? One is 8x8.
Two Children: Probabilities. Boys
A teacher has 2 children. The older is a boy. What is the probability that both children are boys?
Two Children: Probabilities. Girls
An artist has 2 children. They aren't both boys. What is the probability that both children are girls?
Six-Pointed Star - Magic Sum 26
Place the numbers 1 through 12 in the circles of this six-pointed star so that the sum of the numbers in each of the six rows is 26. Hint: 1 & 12 - on the same line.
One Protrusion, One Cutout
Cut this figure into 2 congruent parts (identical in area and shape, though they can be mirrored).