There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

Only one colour, 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?

Why do we preferably have round manhole covers and not square ones?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98