What does the below rebus riddle means?

What does this below rebus puzzle mean?

When it is alive we sing, when it is dead we clap our hands. What is it?

Solve the equation in the image by looking at the pattern closely.

What do you call a fish without an eye?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

Which digit occurred maximum times between the number 1 and 1000?

What will you call your mother's brother's brother-in-law?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?