What does below rebus means ?

what does this picture(rebus) riddle means ?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

I have Rs.50 and I spend it in the way as below.

Find out the number of circles in the given picture having Illusion

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

It is a 5 letter word if you take away first letter it is something you get from sun, if you remove second letter you will get something to eat, if you remove third letter you get a word you use in pointing at and if you remove the fourth letter you get something to drink. What is it?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?