what does this picture(rebus) riddle means ?

Take one out and scratch my head, I am now black but once was red. What am I?

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

Can you replace the question mark with the correct number?

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

What does a man do only once in his lifetime, but women do once a year after they are 29?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?