What does this mathematical rebus means ?

Which is heavier: a ton of bricks or a ton of feathers?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

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?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?