1. Monday –  

1. “Finished files are the result of years of scientific study combined with the experience of years.”  

How many F’s did you find?  

Answer: SIX   

Solution: Most people say three. Why? We often don’t correctly process the word “OF” for two reasons. First, the letter F usually makes the “f” sound, like in “fox”. However, in the word “of”, it makes a “v” sound. Second, you have probably read the word “of” so many times in your life that you process it as one unit, overlooking the second letter/ sound.    

2. Tuesday 

1.  Of the 100 people at a recent party, 90 spoke Spanish, 80 spoke Italian, and 75 spoke Mandarin. At least how many spoke all three languages? 

Answer: 45   

EXPLANATION: 
10 could not speak Spanish, 20 could not speak Italian, and 25 could not speak Mandarin. So there could have been 10 people who spoke none of those languages.  

However, that would maximize the number of people who could speak all three, and the problem asks at least how many speak all three. Therefore, we must assume that these 10, 20, and 25 people are all separate people. Having identified 55 each of whom is missing one language, the remaining 45 speak all three. 

3. Wednesday –  

1. What is going on in these 2 pictures?   

Is there something out of place?   

Answer: Click on Link for Answer  
https://youtu.be/9MBBr-a2KnM  

4. Thursday 

1. Which figure should be placed in the empty triangle? 

Answer: 3    

SOLUTION: 
 
The top number minus the bottom left-hand number is multiplied by the bottom right-hand number to give the number inside the triangle.