If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Can you decipher the below rebus?

PBLUESAISNUERSES

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

Steffi's daughter Jazelle needs to be picked up from school every day.
Steffi asks one of her colleagues to pick up Jazelle from the school. Steffi devised a password system to confirm that Jazelle goes with the correct colleague only.

The password on Monday was SJM16.
The password on Wednesday was TAW39.

What will the password be for Friday?

There was a strange boy who was born before his father. How can this be possible?

In the given picture, in how many ways can you read the word "Tiger"?

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

What does below chemistry rebus means?

I am white when I am dirty, and black when I am clean. What am I?