Issue 57, 2025Notebook Issue

Brainteasers-Issue 57, 2025

Tie Fighter

Move only four cable ties so that the cable ties form three unique equilateral triangles.

We’ve recently added a number of additional specialty cable ties and cable tie mounting products including the “winged push-in panel ties” shown in this puzzle.  Check them out here: go2adc.com/sapiselco

Do Your Level Best

The liquid level in the 100 x 100 unit square tank in initially 50 units deep.  How much will the liquid level increase if a 50 x 50 block is lowered into the tank?  (The block is tall enough that the liquid will not over-top it)

Did you know we sell a variety of liquid level sensors, transmitters, and controllers that are used to measure tank levels and more?  Whether you need capacitance, float, radar, hydrostatic, ultrasonic, rotating paddle or vibration fork/rod, we have ALL your level sensing needs covered.  Find out more here: https://go2adc.com/level

Triple Tangency

The image shows a right triangle with an inscribed circle.  Each side of the triangle is tangent to the circle. The length of the hypotenuse is given on each side of the tangency point.  What is the area of the triangle?