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What is the outermost part of the tooth called?

ADentine
BEnamel
CPulp
DNone of these

Runoff water from nearby crop fields enters a small lake. How will it affect the lake ?

AIt will cause the lake to dry up.
BIt will cause algae to grow in the lake.
CIt will cause the lake to become deeper.
DIt will cause water in the lake to become solid.

Select the correct match.

Identify the rule followed in the number series given below.



AAdd 2 in previous term to get the next term
BMultiply previous term by 2 to get the next term
CSubtract 2, 4, ............ sequentially
DMultiply the number by itself to get the next term

Many inventors invented light bulbs, but it was him who invented an incandescent bulb that could burn for a long time. He was also the first inventor to be awarded a patent for this invention. Identify him.


ASamuel Morse
BAlexander Graham Bell
CThomas Alva Edison
DJohn Logie Baird

How many meaningful words could be formed with the third, fifth, fifteen and seventeenth letters of alphabets given below? If more than two words are formed give M as the answer, if no such word is formed give X as the answer.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A2
B1
CM
DX

There is a definite relationship between figures (i) and (ii). Establish the same relationship between figures (iii) and (iv) by selecting a suitable figure from the options that would replace the (?) in fig. (iv).

(IMO 2015)



A
B
C
D

Which of the following is the heaviest?


A
B
C
DCan't be determined

The given picture is a beautiful palace situated high up in the Tibetan Plateau in the Himalayas. It was the home of the Dalai Lama before he fled to India. What is it called?


ABuckingham Palace
BWhite House
CKremlin
DPotala Palace

Who among these is the writer of the famous children's book 'Green Eggs and Ham'?

AEric Carle
BDorothy Kunhardt
CDr Seuss
DNina Laden