Eight of us go fourth, not back, to protect our king from an attack. What are we?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

Can you find the thief by just looking at the picture below?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Forwards I am heavy, backward I am not. What am I?

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

I look at you, you look at me, I raise my right, you raise your left. What am I?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

Replace the question mark in the picture below.

You are given 16 witch hats. The hats are divided in four different colours – red, blue, green and yellow. Every colour has been assigned to four hats. Now each of the hat will be glued with a label of an arithmetic sign – ‘+’, ‘-‘, ‘x’ or ‘/’. But you can label one sign only once on one colour. In such an arrangement, the hats can be uniquely defined by its colour and symbol.

Can you arrange all the 16 hats in a 4x4 grid in a fashion that no two rows and columns have a repetition of colour or sign?
We have arranged four hats in the below picture to assist you.