what does the below rebus means?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Which number should replace the question mark?

If an electric train is travelling south, then which way is the smoke going?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?