What does below chemistry rebus means?

I look at you, you look at me I raise my right, you raise your left. What am I?

The cream is heavier than Milk. True or False?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Remove two matchsticks to make the below equation correct.

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Find the value of "?" in the ball picture Riddle below:

If your uncle’s sister is not your aunt, what relation is she to you?

A man and his wife were doing missionary work near the city of Nairobi in the country of Kenya in eastern Africa. Their housing had not yet been completed, so the man, the woman, and their six year old daughter were spending a few nights in the jungle in three small pup tents. During their third night there, the woman was awakened by the call of a hyena passing by, so she got out of her tent to see if her young daughter had been frightened by the noise. As she peered into her daughter's tent she was surprised to see the dark figures of lion, a panther, and a cheetah which were curled up next to her daughter. Seeing her daughter was asleep and unharmed, the woman slowly and quietly withdrew from the tent, and simply returned to her own tent and went back to bed. How could this child's mother leave her daughter in such a dangerous situation, and simply ignore what she had just witnessed without intervening in some way? How can such emotional coldness ever be explained; or is there something here we are missing?