I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

Can you decipher the two rows to find the hidden word?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

what one word does the below rebus identifies?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.