Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

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?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

I am sure no one can have two things for dinner. what are they?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

It belongs to you, but other people use it more than you do. What is it?