How can you make number one disappear by adding something to it?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Can you guess the name of the month by looking the below rebus ?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

People make me, save me, change me, raise me. What am I?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?