What does below chemistry rebus means?

What is the last thing you take off before bed?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Jack and Joseph are well-known golf rivals. One Day during a match, they were level at a score of 30. Jack hit a bad shot and Joseph added 10 to his score. Joseph then hit an awesome shot and he won the game.

How ?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

500 women soldiers are arranged in an array of ten rows and fifty columns in accordance with their respective heights. Now, the tallest woman from each row is asked to move out in the front. From them, the shortest one is labelled as Alpha. They are then asked to resume their original position.

Now, the shortest woman in each column is asked to come out in front. The tallest among them is labelled as Beta.

Can you find out if Alpha will be taller or Beta?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

What is both possible and impossible at the same time?