What does this Rebus Picture mean?

Using exactly three matchsticks, can you divide the area into two equal parts?

Find the hidden panda in the image below.

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

During a secret mission, an agent gave the following code to the higher authorities
AIM DUE OAT TIE MOD

However, the information is in one word only and the rest are fake. To assist the authorities in understanding better, he also sent them a clue, If I tell you any one character of the code, you can easily find out the number of vowels in the codeword.

Can you find out the code word?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

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

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??