If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Can you decipher the below rebus?

PBLUESAISNUERSES

There are forty elephants and they have forty-fore heads. How can this be possible?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

Spot what is wrong here in below Picture?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

Kareena is older than Katrina and younger than Karishma. Isabelle is younger than Bipasha and Karishma. Bipasha is older than Karishma. If Kareena and Isabelle are the same age, who's the youngest?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.