What does the below rebus riddle means?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

From a pack of 52 cards, I placed 4 cards on the table.

I will give you 4 clues about the cards:

Clue 1: Card on left cannot be greater than the card on the right.
Clue 2: Difference between the 1st card and 3rd card is 8.
Clue 3: There is no card of an ace.
Clue 4: There are no face cards (queen, king, jacks).
Clue 5: Difference between the 2nd card and 4th card is 7.

Identify four cards?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Do You See It?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

Can you replace the question mark with the correct number?

Who are the happiest people in IPL match?