What goes up but never comes down?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

One night, a woman receives a call from the police. They tell her that her husband was murdered and that she should come to the crime scene as soon as possible. The woman drops the phone, shocked, and drives 20 minutes to the crime scene. As soon as she reaches the crime scene, the police arrest her and she is convicted of murder. How do the police know she committed the crime?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

Why Wine Glass Stem is so long?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.