I can write cow in 13 letters.

Can You?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

If eleven plus two equals one, what does nine plus five equal?

Write the next letter in this sequence.
O, T, T, F, F, S, S, E, __
**Hint: It is a Number Series Puzzle

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

The more you take me, the more you leave me behind.
Who Am I?

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?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

What is next number in the pattern below:

131 517 192 123 ?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?