You need to arrange three 7 and mathematical symbols to form number 1?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

Which letter of the alphabet has the most water?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

There are five men, let's say Tarun Harish Lavesh, Manoj, and Manish. All of them have a dot mark on their forehead. They can't see the dots on their forehead but can see the ones on others. The owner of WHITE Dot is an honest person and will never lie, while the owner of BLACK Dot always tells the lie.

This is the statement from Tarun Harish Lavesh and Manish:
Tarun: 'I see 3 whites and 1 black'
Harish: 'I see 4 black'
Lavesh: 'I see 3 black and 1 white'
Manish: 'I see 4 white'

What colour is the dot on each of Tarun Harish Lavesh, Manoj, and Manish's forehead?

Solve the rebus riddle in the picture below.

There was a strange boy who was born before his father. How can this be possible?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

Find out the missing number in the picture attached:

Decode below rebus
D
N
A
T
S , D