Can you find out who is the kidnapper in below Picture and why, Explain ?

Dwayne Johnson was running away with the loot from a heist in his car along with Vin Diesel. One tire was punctured and he dropped down to replace it. While changing the wheel, he dropped the four nuts that were holding the wheel and they fell into a drain. Vin Diesel gave him an idea using which they were able to drive till the rendezvous point.

What was the idea ?

What is the Surname of Barbie Doll?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

what does the below math rebus puzzle mean?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?