Solution:

Joke

Solution:

Solution is below

Solution:

Steps:
1) Light fire on first bar from both the ends and second bar from one end.

2) After 30 seconds(when first bar gets completely burned out) , burn the second bar from second end as well.

3) When second run completely gets burned , you know its 45 seconds.

Solution:

The two numbers are 4 and 13 whose product is 52 and sum is 17.

Solution:

There are 3 fruits (1 grapes, 1 apples, and 1 oranges).

Solution:

A Spider

Solution:

A cigar stuck in the wall

Solution:

10

Explanation:
Equation 1 + 9 + 11 = 1 can be derived from
One (o) + nine (n) + eleven (e) = one => 1

Similarly for equation,
12 + 11 + 9
Twelve (t) + eleven (e) + nine (n) => ten (10)

Solution:

457730 * 4 = 1830920
(DOLLAR * 4 = QUARTER)

Solution:

2003.

Explanation:
Its a series of prime numbes.

Solution:

What is the correct time ?