He was not near the beach, so when he looked in the direction of the beach, he was too far away to see it.

A liftman.

They both stay in middle of water.
Water, observe the middle letter "t". An island is also surrounded by water.

Heroine.

A cupcake

9, 10, 11.
First divide 150 by 5 to get the sum of that 3 numbers: 150/5 = 30
Now divide 30 by 3 to get the middle number of that three numbers
30/3 = 10
So ten is the second number and 10-1 which is 9 is the first number and 10+1 which is 11 is the third number
The three numbers are: 9, 10, and 11

Because they were born in different years.

Leap Year.

No pigs got wet in this riddle. I didn't say it was raining!

Bookkeeper.

48
(x+5, +7, +9, +11, +13)

When you are having a problem with adding.