I look at you, you look at me I raise my right, you raise your left. What am I?

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

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

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.

Can you identify the famous TV character from the rebus below?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

What do you see in the image below

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

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

Explain how?

In the image below, can you find the value of an angle(y)