What is always in front of you but can’t be seen?

If 21x = 79x, what is the value of x?

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

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

How many words can a pen with half refill write?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?