Questions

DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the basis for biological inheritance. Complementary base pairing helps prevent errors in DNA replication.

Given 8, 9, 1, 11 letters indicates HOME which is residence

7, 2, 9, 5 indicates POOL where we can swim

1, 4, 5, 11 indicates MILE which is unit of distance

10, 9, 3, 6, 5 is NOBEL which is an International Prize

6, 11 are 'e' and 2, 9 are 'o' are same

With all the above hints the word is MOBILEPHONE.

A Needle works when it has thread in its eye that is in its tiny hole.

As you were asleep, none of the things could have happened without doing "open your eyes" first.

In the first figure, number of triangles are 5.

In the second, the figure becomes double then the number of triangles also doubles.

i.e, 10. 

Thiruvananthapuram also known as Trivandrum, is the capital and the largest city of the Indian state of Kerala is named after the snake Anantha of Lord Vishnu.