Replace the question mark with the correct number in the below-given picture?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Spot the cat in the picture below

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

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

Can you count the number of triangles in the picture below?

What does Alexander the Great and Winnie the Pooh have in common?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.