How many times in a given day, minutes and hour clock comes in a straight line ?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

A few friends are enjoying their sea voyage in a boat full of apples. On the way, they felt hungry and thus decided to eat the apples. Together, they ate two dozen of apples. When they have eaten the apples, will there be any change in the water level?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

Make a sentence consisting of three words that have the whole alphabet.

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

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

I have Rs.50 and I spend it in the way as below.

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?