Read the following riddles that will blow your mind!! Can you solve them?

Mr. Smith has 4 daughters. Each of his daughters has a brother. How many children does Mr. Smith have?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

When is your uncle's sister not your aunt?

A doctor's brother died, but the man who died had not brother. How can that happen?

Four people are sitting around a campfire, when one man comments:

"Do you realize that around this campfire, the four of us include a mother, father, brother, sister, son, daughter, niece, nephew, aunt, uncle and a couple cousins?"

If everyone is related by blood how is this possible?