Count the squares in the matchstick puzzle below?

Name a key which is hardest to turn.

How many times in a given day, minutes and hour clock comes in a straight line ?

What is the word or phrase below?
R | E | A | D

If your uncle’s sister is not your aunt, what relation is she to you?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

What can you catch but never throw?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?