The centre of the third figure is empty. What digit should fit inside?

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

Different lights make me strange by changing me into different sizes. What am I?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Buy me, smell me or deliver me, I do not change.

Who am I?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

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?