In the image below, can you find the value of an angle(y)

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

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 ?

What does the below mathematical rebus mean?

What is the next number in the series?

15 29 56 108 208 ?

Can you Find and name the hidden bird in the picture below ?

As you can see in the picture, you have a hole with dimensions 9 ft x 2 ft Also available is a wooden board with dimensions 6 ft x 3 ft Now you have to cover the hole with this board and you are allowed to cut the board into two pieces. Please see that the hole is completely covered and the boards should not overlap or extend beyond the edge. How will you cut the board?

Find the next number in the series below.

6 18 270 72090 ?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?