**Puzzle**

Some birds settle on the branch of tree. First, they sat in a manner that each bird sit on one branch. That means each branch contain a single bird. In this case a single bird left to sit or a single bird donâ€™t get space to sit. Next day birds are sitting in a manner that two birds were sitting in a single branch. In this day a branch remains empty. Now you have to find out the minimum number of birds and branches.

**Important points of puzzle:**

- Some birds settle on the branch of tree.
- First, they sat in a manner that each bird sits in a single branch.
- In this manner one single bird left to sit.
- On next day they sit in a manner that on each branch two bird sits.
- In this manner one branch remains empty.
- Now you have to find the minimum number if birds and minimum number of branch.

**Answer**

4 Birds and 3 Branches.

**Reason**

The reason behind this is that when each bird sit on a single branch then one extra bird left. When they sat two to a branch then one extra branch left. If there were 3 branches and 4 birds, then if each bird sit in single branch then one bird left and if two birds were sit on a single branch then one branch left. Hence the correct answer of this problem is 4 Birds and 3 Branches.