A plane crashed between the border of Mexico and America. Where do you bury the survivors?

A man is found dead in his bathroom naked with blood scattered all around him. The bathroom was locked from the inside and there is no trace of any struggle. There is nothing in the bathroom except his pant with the belt still around and his shirt. Also, the medic team can't find any incision in his body that may have been the reason behind so much blood loss.

The Police department is clueless regarding this murder mystery.
Can you?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

There is a place where if I stand up straight, I will still be considered sideways.

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?