I have branches, but no fruit, trunk or leaves. What am I?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

What jumps when it walks and sits when it stands?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

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 ?