What has no start, end, or centre?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

Why is the longest human nose just 11 inches?

I have branches, but no fruit, trunk or leaves. What am I?

How many times do a clock's hands overlap in a day ?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

I got a bee but no honey.
got an eye but am still blind.
got a sea but no water.
got a tea but no coffee.
got a why but no answer.

What Am I?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?