Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

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?

In an office's desk, you find a unique method that shows the current day of the month. Two numbered cubes are used to depict the current date.

Can you find out the numbers on both the cubes so that each date can be mentioned using them?

Please note that you have to use both the cubes to display any date. Thus the 1st day must be represented by 01 and so on.

There is a place where if I stand up straight, I will still be considered sideways.

What is 3/7 chicken, 2/3 cat and 2/4 goat?

What type of tree can I carry in my hand?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

What can you see in the middle of March and April that you can never see in any other month?