Can you find the key in the picture below?

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

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

What kind of band never plays music?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Find the 8 in the below-given Image.

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

What goes up but never comes down?