I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

When 99 is considered higher than 100?

Can you place six X (crosses) in below board without making three in a row in any way ?

Chhote se Chintu Miyan,
Lambi si Pooch.
Jahan Jaye Chintu Miyan,
Wahan Jaye Pooch.

छोटे से चींटू मियाँ,
लंबी सी पूंछ।
जहाँ जाये चींटू मियाँ,
वहाँ जाये पूंछ।

Bolo kya?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

What number comes next in this sequence:
7 8 5 5 3 4 4 _

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

What kind of storm is always in a rush?

What Deficiency does the below rebus represent?

VIT_MIN