4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

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.

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

What has no start, end, or centre?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

How many times can you subtract the number 5 from 25?

What kind of tree can you carry in your hand?