How can you write nineteen in a manner that if we take out one, it becomes twenty?

When is the top of a mountain similar to a savings account?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?

What is the largest number you can write with just 3 digits?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Which is the smallest number that you can write using all the vowels exactly once?

What kind of band never plays music?

You are given 16 witch hats. The hats are divided in four different colours – red, blue, green and yellow. Every colour has been assigned to four hats. Now each of the hat will be glued with a label of an arithmetic sign – ‘+’, ‘-‘, ‘x’ or ‘/’. But you can label one sign only once on one colour. In such an arrangement, the hats can be uniquely defined by its colour and symbol.

Can you arrange all the 16 hats in a 4x4 grid in a fashion that no two rows and columns have a repetition of colour or sign?
We have arranged four hats in the below picture to assist you.