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Why does a television retain some light even after it is switched off?

V.P. Sreenath, Chidambaram, Tamil Nadu

When we cut the skin near the parts of nails of fingers and toe we don’t feel the pain. Why is that so?

V. Bhalakumar, Chennai

Why is it difficult to ride a bicycle that is punctured?

V.S.Rajashekhar, Chennai

Why does a tractor have different sizes of wheels in the front and back?

L. Sri Subramaniam, Salem, Tamil Nadu

Why it becomes difficult to breath while travelling at a high speed in open air?

Sreejith. M, Idukki, Kerala

Why does the colour of dough made up of flour changes to black after keeping it some days in refrigerator?

Mamita Panda, Sambalpur, Orissa

Is it possible to extract oil from grams, if not why?

D. Epiphany Pushparaj Vincent, Vellore, Tamil Nadu

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