Solutions - puzzles and riddles

Bobby was the one who ate the pie. Bobby said he just came in from shoveling snow and immediately saw the pie. Given it is very cold outside and he wears glasses, his glasses would fog up when he came inside a warm home and would not be able to see the pie.

In Science, this is known as "condensation". Condensation is when humidity or water vapor lands on a cold surface. The water vapor turns into tiny drops of liquid, forming a film we see as fog. That is where the term "Fogging up your glasses" comes from.

The easiest way to solve this is solving the division question first. Given you can only use each digit once, the only possible division answers you can use are 8 / 4 = 2, 8 / 2 = 4, 6 / 3 = 2 and 6 / 2 = 3. Now it is a trial and error process and try each equation and see if you can solve the puzzle.

Here are the highest recorded speeds:

Maglev Train                                 - 603 km/h

Commercial Car (Jesko Absolut) - 531 km/h

Peregrine Falcon (Diving Speed) - 389 km/h

Maglev Train is the fastest.

To get the key out of the tube, pour Alex's soda into the tube. As the key is made of a light plastic material, it will float in liquid.

Giordano's slap shot travels 20 meter in 0.44 seconds. The formula to calculate speed is distance divided by time. 20 meter divided by 0.44 seconds equal to 45.45 m/s. Now we need to convert this to km/h. There are 1,000 meters in each kilometer and there are 3,600 seconds in each hour (60 seconds in a minute, 60 minutes in each hour). We need to divide the numerator by 1,000 and the denominator by 3,600. The resulting answer is 164 km/h. That is faster than any legal speed limit in Alberta.

How Mike Vernon pull the trick off is the ice is really frozen Sprite. The bottle of Sprite was actually water since no one tasted it before they left the room. The frozen Sprite would melt at room temperature over a day and become a liquid. When matter changes from a solid state to a liquid state, it is called melting. The other changes of physical states are condensation (gas to liquid), evaporation (liquid to gas) and freezing (liquid to solid).

The key is the use of halogen light bulbs. Halogen light bulbs require heating a filament to produce light. To find out which light is on which floor, Johnny would turn the first switch on for fifteen minutes then turn it off. He would turn on the second switch and leave it on. He will not touch the third switch. He would then go upstairs. Whichever light that is off but is warm to the touch will belong to the first switch. The light that is turned on belong to the second switch. The light that is off and cool to the touch will belong to the third switch. 

Operating halogen and incandescent lights requires alot of energy. On the other hand, LED (Light Emitting Diode) produces light when electrons move around within its semiconductor structure and thus uses much less energy. Make sure your home is using LED lights to conserve energy and help make our planet greener.