Why is 6 afraid of 7?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

Solve the counting riddle by identifying the number of triangles in the given picture.

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

A generous owner of a company decided to give a bonus of $45 to every man and $60 to every woman on his birthday. But only one-ninth of the men and one-twelfth of the women were present to take the bonus.

Can you calculate the amount of money the owner spent if there were 3552 employees?

What four weights can be used to balance from 1 to 30 pounds?

No matter how little or how much you use me, you change me every month. What am I?

What has 88 keys?