What is so fragile that saying its name breaks it?

What has to be broken before you can use it?

It is always ahead of me yet I can never see it. What is it?

Why are televisions attracted to people?

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?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

What question can you never answer yes to?

You are a cab driver who pools passengers. You pick 3 people from a destination and drop 1 after an hour. 2 people climb aboard at the same time and you drop 3 at the next destination. After some time, you pick 2 passengers only to drop 1 after a short distance where 3 more passengers climb up the cab. You leave the rest of the passengers one by one to their destination and then come back home.

Can you tell the eye color of the cab driver?