They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

I have an eye but still cannot see.

Who am I?

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?