He is going in the subway the opposite way than he wanted to go.

Liar

Number 4
Because he is wearing red color shirt whic is there near the dead women.

042

99 runners.
50+49 coz he’s the one in the first 50

45⁰ only

Keep 4 marbles in each sides of the scale
Case 1: If any of the two sides has unbalanced weight , then that side has unusual marble. So in that 4 keep 2 each sides and do the same procedure and any one side will be unbalanced . In those 2 keep again one each sides and one will be unbalanced. That will be the unusual marble. It has only 3 steps.
Case 2: If both of those 4 marbles are balanced,then again do the same procedure as mentioned above. This also has 3 steps. And the unusual marble is found.

Both should stand facing different direction

Headache and Heartache