Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

I’m orange, I wear a green hat and I sound like a parrot. What am I?

When can we add 2 to 11 and get 1 as the correct answer?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

Which city is three-fifths chick two third cat and 50% goat?

What is the longest word in the dictionary?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

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.

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?