Replace the question mark with the correct number in the below-given picture?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

When it is alive we sing, when it is dead we clap our hands. What is it?

Can you fill the blank with the correct number?

6 30 870 756030 _____

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

Can you find out the missing number in the grid?

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

Why did Buffon take the goal with him after every Juventus match?