It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Replace the question mark with the correct number.

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

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?

What kind of band never plays music?

What begins with T, ends with T, and has T in it?

What has no start, end, or centre?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?