This week’s questions

Why doesn’t a cut on the palm of a hand leave a scar after full recovery?

Dipanshu Jain, Hyderabad

Why can’t we inhale and swallow at the same time?

D. Bhanuja, Visakhapatnam, Andhra Pradesh

Why doesn’t an insect inside a bus, flying at a speed lesser than the speed of the bus, hit the back side of the bus?

Vishnu Shankar, Rajapalayam, Tamil Nadu

How do crows sit on a high voltage electric wire without getting electrocuted?

K. Srisivaram, Chennai

Why is it difficult for a huge truck speeding at 50 Km/hr to negotiate a curve rather than a motorcycle at the same speed although the radius of banking is independent of mass?

Maninadh P., Visakhapatnam, Andhra Pradesh