Can you decipher the below rebus?

PBLUESAISNUERSES

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

I have Rs.50 and I spend it in the way as below.

What is common among 11, 69, and 88?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

What always comes into a house through the keyhole?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

10+10 and 11+11 can give you the same answer.

Explain how?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?