I am sure no one can have two things for dinner. what are they?

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?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

There are forty elephants and they have forty-fore heads. How can this be possible?

I look at you, you look at me I raise my right, you raise your left. What am I?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?