By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

What do you think with the below Picture ?

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

In the four images below, can you find the odd one out?

What do you get if you add 2 to 100 four times?

Can you divide the below-given shape into four equal and identical pieces?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?