Who was jupirer
The answer will be 5
Guess a number 1-10, multiply it by 2, now add with 54 and divide by 2. Lastly, subtract the number you guessed 1-10. What number are you left with, and what is unusual about it?
What number gives the same result if you divide it by 2 or take 2 from it? What number gives the same result if you divide it by 3 or take 3 from it?
Note: you will need to include a fraction or decimal for this one...
Create the number 24 using (all of) 1,3,4 and 6. You may add, subtract, multiply and divide. Parentheses are free.
You must use each digit only once.
Note that you may not "glue" digits together. Powers are not allowed.