A maths symbol is hidden in the below Bar Graph. Can you decipher it?

You need to cut a round cake into eight equal pieces with just 3 cuts. Can you do it?

Can you replace the question mark with the correct number?

Role Action
Block Prevents the target player from acting
Redirect Change target player target.
Save Protects the target player from death.
Seer Sees all actions that occurred
Murderer Kills the target player

The following five players are playing:

Andy
Brian
Chris
Daniel
Fred

You are Andy the Seer and you saw the following things:
a) Brian was redirected to Chris.
b) Chris was blocked.
c) Daniel was killed.

Who is the murderer then?

This isn't your average math problem. It requires you to see beyond basic operations and identify the hidden logic that connects the numbers.

18, 46, 94, ?, 52, 61

Which city is three-fifths chick two third cat and 50% goat?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

I taste better than I can smell. Who am I?

I cannot talk, but I always reply when spoken to. What am I?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99