He ........ when I ........ my last letter to you.

Infra red is to heat ultraviolet is to ……..?

–aaba-bba-bba-abaa-b

Village P is towards which direction of village R?
I.Village R is to the South-East of village T and T is to the North of village?
II.Village Q is to the South of village P and to the South-West of village R

Statements : All switches are plugs.

Some plugs are bulbs.

All bulbs are sockets.

Conclusions : 

I. Some sockets are plugs.

II. Some plugs are switches.