A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

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

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Replace the question mark with the number below given a simple math problem.

I am sure no one can have two things for dinner. what are they?