What does this mathematical rebus means ?

What does this rebus riddle means ?

1. How can we put an elephant in the refrigerator?
2. How can we put a Giraffe in a refrigerator?
3. The king of the jungle invites all the animals to a party everyone comes except for one animal, which animal?
4. You come to a crocodile-infested lake, you can't go around it, you can't co under it and you can't go over it, how do you get across?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

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

Can you divide the below-given shape into four equal and identical pieces?

Solve the counting riddle by identifying the number of triangles in the given picture.