Can you place six X (crosses) in below board without making three in a row in any way ?

It belongs to you, but other people use it more than you do. What is it?

Give it food and it will live; give it water and it will die.

How many letters are in the alphabet?

Why Wine Glass Stem is so long?

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?

Why is a river so rich ?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?