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

Can you solve the below tricky visual equation?

Can you count the number of rectangles on a chessboard?

What is the longest word in the dictionary?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

What is the Surname of Barbie Doll?

Buy me, smell me or deliver me, I do not change.

Who am I?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

Five thieves looted a bank and they ran away in a car. The bank staff informed the police and they began the search of their car in their jeep. They found them on a road and chased them eventually catching them. The light that is used to fill the number plate was broken on the thieves' car. Also, the headlights of the jeep police were not working. How were the police able to catch the thieves then?

Why 1729 is a magic number? Answer Logically.