What is the below Rebus indicate?

Can you find the hidden animal in the picture below?

How many letters are in the alphabet?

What is red and smells like blue paint?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

What has many keys but can’t open a single lock?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?