A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

Decode below rebus
D
N
A
T
S , D

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?

Find the value of "?" in the ball picture Riddle below:

Can you write down eight eights so that they add up to one thousand?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?