Competition time !

Going to do a small competition today, the winner will receive 0.05 SBD and 2 runners up will receive 0.01 SBD!

Winner will be the first one to get all the correct answers and the runner ups will be chosen at random from the rest of the correct entries.

Upvotes and resteems are appreciated to grow the competition. The more followers and upvotes we get the higher the prizes will go.

Please follow so you don't miss any future competitions!

Here it goes:

1. Name the logo from this picture
   

2. What is 5 + 4 x 21 - 16?

3. What is the tallest waterfall?

4. Riddle: You can carry it everywhere you go, and it does not get heavy. What is it?