What is the next number in this matchsticks series riddle?

Where do fish keep their money?

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 ?

Can you identify the hidden rebus in the image below?

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

How can you take 2 from 5 and leave 4?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?