I’m tall when I’m young, and I’m short when I’m old. What am I?

Six people park their car in an underground parking of a store. The store has six floors in all. Each one of them goes to a different floor. Simon stays in the lift for the longest. Sia gets out before Peter but after Tracy. The first one to get out is Harold. Debra leaves after Tracy who gets out on the third floor.

Can you find out who leaves the lift on which floor?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

You need to remove two matchsticks to make the below equation true. Can you do it ?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Different lights make me strange by changing me into different sizes. What am I?

12345 a famous South Indian actor
567 is a path in jumbled form
8 & 10 are same letters
9 is one among the first six alphabets.
WHO AM I?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?