What does this 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?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

I have Rs.50 and I spend it in the way as below.

Do you know who was buried in John's tomb?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?