What kind of band never plays music?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

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

which number am I?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

How can you make number one disappear by adding something to it?

In the given picture, in how many ways can you read the word "Tiger"?

Which is heavier: a ton of bricks or a ton of feathers?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?