GATE Questions

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A river which can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps.

Te Sun.

From the time rising it goes around the house upto sunset, but never touches the house.

River Congo is the only river which crosses the equator twice.

A restrictive clause is one that limits the meaning of the word it describes.

For example :: 

The girl who lives next door is beautiful.

This restrictive clause limits "the girl" to say it's specifically the one next door.

Kernel follows Round Robin scheme choosing a swap device among the multiple swap devices in Unix System V.

A solution is a homogeneous type of mixture of two or more substances.

A solution has two parts::

1. A solute and

2. A solvent.

The solute is the substance that dissolves, and the solvent is the majority of the solution.

Stars twinkle because they’re so far away from Earth that when light from the stars passes through the atmosphere, it is bent countless times due to refraction, making it look like as if they were blinking. The sun and other planets doesn’t twinkle because it’s too close to Earth compared to other stars.

Given speed of the bike after servicing = 55 kmph

Time taken for travelling some distance at 55 kmph = 5 hrs

Then, 

Distance = Speed x Time = 55 x 5 = 275 kms.

Now, 

Speed of the bike before servicing = 35 kmph

Distance = 275 kms

Now, Time = Distance/Speed = 275/35 = 7.85 hrs =~ 8 hrs.