Our product and our sum always give the same answer. Who are we?

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?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Identify The phrase in the picture.

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

Can you decipher the two rows to find the hidden word?

A Miser man decided to go on a vacation for a month. He goes to the bank and asks for a trip loan of $500. The bank officer asks the man that the loan can only be approved when he mortgage some valuable thing at the bank. Miser man mortgages his only car whose worth was a whopping $80000. The Bank officer laughed at him and approve the loan instantly. After vacation when the miser man returns, the bank officer asked him "Are you an idiot, why is your mortgage such an expensive car for such a short loan?".

Miser man replied with some reason and the bank officer agreed that the miser man is actually not an idiot.

What did miser man reply to the bank loan officer?.

I have an eye but still cannot see.

Who am I?

Which of the below owl is odd one out?

What happened when the wheel was invented?