Why is it very easy to weigh a fish?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

Find the next number in the series below

21 32 54 87 131 ?

Which tank will fill first?

Can you count the number of squares in the figure below?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

You bought me for dinner but never eat me. What am I?

A person was killed at a house party. When the police arrive, there are six people present in the house who are the friends of the victim. The name of the friends is Rohit, Aman, Nick, Gagan, and Randy.

Near the dead body, they find a few numbers written with blood by the victim on the floor. The numbers are 8, 5, 4, and 11.

The police arrests one of the friends for the murder. Whom did they arrest and why?