Where will a person weigh more in Ooty or in Delhi?

Will 2 litre of kerosene oil weigh more in winter or summer?

In a city no two persons have identical set of teeth and there is no peson without a tooth. Also no person has more than 32 teeth. If we disguard the shape and size of tooth and consider only the positioning of the teeth, the maximum population of the city is

A person normally weighing 50 kg stands on a massless platform which oscillates up and down harmonically at a frequency of 2.0 s^-1 and an amplitude 5.0 cm. A wighing machine on the platform give s the persons weight against time Will there be any chage in weight of the body, during the oscillation?

What are personal errors?

A certain nearsighted person cannot see objects clearly,when they are more than 78 cm from either eye. The person's near pint is 23 cm.How is this affected,when viewing through the corrective lenses?Assume that the lenses in spectales are 3 cm in front of the eye.

Given the following statement : If you do not have winter clothes, then you do not live in Delhi. write its converse.

A force of 50 kg is requird to pull a roller weighing 500 kg over ice.What is ceofficient of friction?

An army tank weighing more than a hundred tonne move conveniently on an earthen road. How ?

You buy weight of sugar at a place situated on equitorial line and then take it to Antarctica. Will that sugar weigh same there ? If not whether it would be more or less.

What initiatives were iaken for reducing vehicular air pollution in Delhi? Has air quality Improved In Delhi?