Some will use me, while others will not. Some have remembered, while others have forgot. For profit or gain, I am used expertly. I can not be picked off the ground or tossed into the sea. Only gained from patience and time. can you unravel my rhyme?

How can you physically stand behind your friend as he physically stands behind you?

Which one does not belongs to family of four in each line :

1. Carnation, Peony, Tomato, Rose

2. North America, Australia, Asia, Canada

3. Dodgers, Cubs, Cowboys, Cardinals

4. Laugh, Giggle, Chuckle, Cry

5. Southeast, Southwest, Northeast, East

Which day would yesterday be if Thursday was four days before the day after tomorrow?

What do the following animals have in common ?

1. Cat
2. Fox
3. Raccoon
4. Squirrel
5. Mouse