We at** smartzune.com ** love to solve riddles — it’s a fun way to warm up and test our brain. Today we challenge you with 6 puzzles that will make you think outside the box.

### 1.

Find the answer at the end of the article!

### 2. Find F

when you are writing your equation, ALWAYS use lower case.

If you put your function in upper case, as you did in the function, you are saying that the function in the anti-derivative. That is something that is in Calculus in high Math.

If you want to keep the function as a normal function, keep them in lower case as in f(x)=−4x instead of F(x)=−4xgetting back to your function, when the question asks you to find f(-1), all it mentions is to put -1 in the function that was given.

If you put your function in upper case, as you did in the function, you are saying that the function in the anti-derivative. That is something that is in Calculus in high Math.

If you want to keep the function as a normal function, keep them in lower case as in f(x)=−4x instead of F(x)=−4xgetting back to your function, when the question asks you to find f(-1), all it mentions is to put -1 in the function that was given.